A satellite re-enters the atmosphere and ejects a capsule, which lands approximately 320 mi (510 km) northwest of Station Nord, Greenland, in the Arctic Ocean ice pack. A person approaches, guided by a homing beacon, while a second person secretly watches from nearby. Commander James Ferraday, captain of the American nuclear attack submarine USS Tigerfish stationed at Holy Loch, Scotland, is ordered by Admiral Garvey to rescue the personnel of a British scientific weather station moving with the ice pack named Drift Ice Station Zebra. This rescue is actually a cover for the real mission. British intelligence officer Jones and a United States Marine Corps platoon join the Tigerfish while in dock. After setting sail, a Kaman SH-2 Seasprite helicopter delivers Captain Anders, a strict officer who takes command of the Marines, and Boris Vaslov, a Russian defector and spy, who Jones trusts. The submarine sails beneath the thick Arctic pack ice, but is unable to break through with its conning tower. Ferraday orders a torpedo launch to break a hole in the surface. When the inner torpedo hatch is opened, seawater rushes in, flooding the compartment and causing the submarine to nose-dive. The Tigerfish is only saved before reaching crush depth by pumping air into the flooded area. After an investigation, Ferraday discovers that the torpedo tube was sabotaged. Ferraday suspects Vaslov, while Jones suspects Anders, continuing to refuse Ferraday's demand for more information about the mission's true objective. The Tigerfish rises and breaks through thin ice to the surface. Ferraday, Vaslov, Jones, and the Marine platoon set out for the weather station in a blizzard. On arrival, they find the base almost burned to the ground and the scientists nearly dead from hypothermia. Jones and Vaslov question the survivors about what happened. Jones reveals to Ferraday that he is looking for an experimental British camera that used an enhanced film developed by the Americans. The Soviets stole the technology and sent it into orbit to photograph locations of American missile silos. The satellite also recorded all the Soviet missile sites. After a malfunction, it crashed near Ice Station Zebra. When Soviet and British agents arrived to recover the film capsule, the scientists were caught in the crossfire; the only way of finding the capsule being a tracking device lost somewhere in the station. Ferraday sends his crew out to search for the capsule. Just as Jones finds the tracking device, he is knocked out by Vaslov, now revealed to be a Soviet double agent and the saboteur. Anders confronts Vaslov and the two men fight before the dazed Jones shoots and kills the American. Vaslov feigns his innocence to Ferraday, who discovers a detonation transmitter for the capsule, which he keeps concealed. The Tigerfish detects approaching Soviet aircraft. Ferraday lets Vaslov use the tracker to locate the ice-buried capsule. Jumping from their transport planes, Soviet paratroopers land nearby and move in as the Americans work to free the capsule from the ice. Their commander, Colonel Ostrovsky, demands the film, threatening to detonate the capsule's explosive booby trap should the Americans attempt to escape with it. After Ferraday hands over the empty container, a brief firefight occurs when the deception is discovered. In the confusion, Vaslov tries to take the film, but is wounded by Jones. Ferraday orders him to give the film to the Soviets. The canister is sent aloft by weather balloon for recovery by aircraft. Moments before it is taken, Ferraday activates his own detonator, destroying the film and denying either side the locations of the other's missile silos. Ostrovsky concedes that both his and Ferraday's missions are effectively accomplished, and the standoff ends, each side beginning the return to their home countries. The Tigerfish completes the rescue of the civilians, and sets sail back to Scotland. A teleprinter machine report frames the incident as a successful cooperative "humanitarian mission" between the West and the Soviet Union.

In 1905, Percy Fawcett is a young British major who participates in a stag hunt on an Irish baronial estate for the visiting Archduke Franz Ferdinand ’s benefit. A skilled horseman and marksman, he brings down the stag swiftly, but is snubbed at the after-hunt party. A year later, Fawcett meets officials of the Royal Geographical Society (RGS) in London, where he is informed that the governments of Bolivia and Brazil are nearly at war over the location of their mutual boundary. Directly affecting the region’s extremely lucrative rubber trade, they have asked the British government to survey it. Fawcett leads the survey party, meeting Corporal Henry Costin, who is familiar with the Amazon rainforest, aboard the ship to Brazil. At a large rubber plantation in the jungle owned by Portuguese nobleman Baron de Gondoris, they meet Lance Corporal Arthur Manley, who tells them the British government advises against further exploration. Nevertheless, Fawcett and Costin, along with several guides and Amazonian scout Tadjui, complete the mission. Tadjui tells him stories about a legendary jungle city covered in gold and full of people. Fawcett dismisses this as insane ravings, but he soon discovers highly advanced broken pottery and some small stone statues in the jungle, convincing him of the story’s veracity. Upon his return, Fawcett is praised, and his wife, Nina (Sienna Miller), has given birth to their second son. In the Trinity College Library of Dublin, she discovers a conquistador text telling of a city deep in the Amazonian jungle, which Fawcett names “the Lost City of Z ”. He also meets renowned biologist James Murray, who agrees to back his Amazon expedition to find that lost city. Attempting to convince RGS members for backing, he is initially ridiculed, but ultimately they concede to further exploration. Murray, unfamiliar with the rigors of the deep jungle, greatly slows them down. Fawcett’s party is attacked along the river, but he makes peace with the natives. Murray’s leg injury becomes severely infected, and he begins to succumb to madness. Fawcett sends him off with a native guide and their last pack animal to find aid. However, the rest of the team abandons the expedition after discovering that Murray had poured paraffin on their supplies. Fawcett arrives home and is introduced to his daughter. Murray survives and, in front of RGS trustees, accuses Fawcett of abandoning him in the jungle, demanding an apology. Fawcett opts to resign from the society rather than do so. When World War I breaks out in Europe, Fawcett fights in France. Manley dies in the trenches at the Battle of the Somme and Fawcett is temporarily blinded in a chlorine gas attack whilst leading an infantry attack. His estranged eldest, Jack, who had long accused Fawcett of abandoning them, reconciles with him as he recovers. In 1923, Fawcett is living in obscurity in Britain. American interest in exploring the Amazon has escalated, mostly due to Fawcett’s stories of the lost city. John D. Rockefeller Jr. and a consortium of U.S. newspapers finance a new Fawcett expedition. The RGS co-funds it at the last moment to maintain British pride. Fawcett shows Sir John Scott Keltie a compass, telling him that he will send it back to him once he finds the lost city. Fawcett and his son go alone this time, travelling as light as possible for up to three years to find “Z”. Costin declines an invitation to join them. The Fawcetts are attacked by natives and run off, only to be stopped by a second tribe, who say that the Englishmen's spirits aren’t wholly of their own world. They declare their spirits “must belong” somewhere, so they will help them find their rightful place. The Fawcetts are drugged during a ceremony and carried away. Years later, Nina Fawcett has a meeting with Keltie at the RGS, claiming she has heard that Fawcett and Jack are still alive and living with tribespeople. The RGS, having sent over a hundred people to search for Fawcett over the years, refuses to do another search; Keltie advises Nina to accept her husband’s death. She refuses, showing him the compass Fawcett had promised to send once he found the lost city. As Nina leaves, her reflection in a mirror shows her walking out into what looks like the Amazonian jungle.

To relieve his boredom, Emperor Ming the Merciless of the planet Mongo begins Earth 's destruction by remotely causing natural disasters. On Earth, football star Gregory "Flash" Gordon boards a small plane and meets travel agent Dale Arden. Mid-flight, the cockpit is hit by a meteor and the pilots die. Flash takes control and manages to crash land into a greenhouse owned by former NASA scientist, Dr. Hans Zarkov. Zarkov believes that the disasters are being caused by extraterrestrials pushing the Moon towards Earth. He has secretly constructed a spacecraft to investigate the attacks. Unable to do it alone, Zarkov lures Flash and Dale aboard. He flies with them to Mongo, where they are captured by Ming's troops. After looking at the trio, Ming is smitten with Dale and orders Flash executed. At the last minute, Ming's daughter, Princess Aura, saves Flash, with whom she fell in love at first sight. While they escape, Zarkov is brainwashed by Klytus, the head of the secret police. Aura and Flash flee to Arboria, kingdom of Prince Barin. Locked in Ming's bedchamber, Dale escapes, and Zarkov is sent to intercept her. However, Zarkov reveals he resisted the brainwashing, and escapes Mingo City with Dale. They are quickly captured by Prince Vultan 's hawkmen and taken to Sky City. Aura and Flash arrive at Arboria. Aura asks the Prince to keep Flash safe. A distrustful Barin, in love with Aura, agrees not to kill Flash, but then forces him to play a deadly game of chance. With the odds stacked against him, Flash uses this opportunity to escape. Barin follows him, and they are both captured by the hawkmen. Aura returns and is taken prisoner and tortured by Klytus and General Kala for her treason. Meanwhile, Ming prepares his wedding to Dale. Flash and Barin are taken to Sky City, where Flash and Dale are briefly reunited. Flash is forced to fight Barin in a death match. However, Flash instead saves Barin's life, causing Barin to join him. Klytus arrives, and Flash and Barin kill him. Knowing this will bring retribution, Vultan and the hawkmen evacuate, leaving Barin, Flash, Dale and Zarkov behind. Ming's ship arrives and captures Barin, Zarkov and Dale. Impressed with Flash, Ming offers him lordship over Earth in exchange for loyalty. Flash refuses and Ming gives the order to destroy Vultan's kingdom along with Flash. Finding a rocket cycle, Flash escapes before Sky City is destroyed. Flash contacts Vultan, and they plot an attack on Mingo City. To defend the city, General Kala dispatches the war rocket Ajax, which is quickly seized by the hawkmen. Meanwhile, Princess Aura overpowers her guard and frees Barin and Zarkov from the execution chamber. Flash and the hawkmen attack Mingo City in Ajax and Kala activates the defenses as Ming's and Dale's wedding begins. Mingo City's lightning field can only be penetrated by flying Ajax into it at a suicidal speed. Flash volunteers to stay at the helm to ensure success and enable the hawkmen to invade the city. Barin and Zarkov enter the control room and confront Kala. In the ensuing fight, Barin shoots and kills her. After fighting through Ming's guards, Barin also manages to deactivate the lightning field before Ajax hits it. Flash flies the rocket ship into the city's wedding hall and impales Ming. Flash offers to spare his life if he stops the attack on Earth. Ming refuses and attempts to use his power ring on Flash, but it falters and nothing happens. He then aims the ring at himself and is seemingly vaporized by its remaining power. A victory celebration ensues. Barin and Aura become the new leaders in Ming's place. Barin names Vultan the general of their armies. Flash, Dale and Zarkov discuss returning to Earth. Zarkov says he does not know how they will get back, but they will try. Meanwhile, Ming's ring is picked up by an unseen person. Ming's evil laugh is heard closely after.

High school senior Venus "Vee" Delmonico longs to leave Staten Island for college, but is reluctant to tell her single mother because they continue to mourn the recent death of Vee's older brother and the price of college. Her friend Sydney is popular on Nerve, an online reality game in which users either enlist as "players" or pay to watch as "watchers". Players accept dares given by the watchers in order to receive money and a spot in the final. After Sydney chastises Vee's unadventurous nature, Vee decides to sign up as a player on Nerve. Her first dare is to kiss a random stranger. At a diner, she kisses Ian, who dances and sings to Vee, revealing he is another player on a dare. The watchers dare Ian to take Vee to Manhattan, and together, they travel to Manhattan. After their first dare of trying on expensive clothes, the fear of her mom catching her in the city gets to her and she decides it's time to go back to Staten Island. However, with the encouragement of Ian to step out of her comfort zone, and the next dare's cash prize, Vee continues to play the game. Thus, together they complete several dares: Vee gets a tattoo, and Ian drives his motorcycle at 60 mph blindfolded. This, as well as Vee and Ian's chemistry, allows them to become two of the top players. Jealous of Vee's popularity on Nerve, Sydney accepts a dare at a party to cross a ladder between two buildings, but she bails during the dare and is eliminated from Nerve. Vee arrives at the party and catches Sydney making out with J.P, a boy Vee has a crush on. As they argue, Vee discovers from her hacker friend Tommy that Ian was dared into bringing Vee to the party and incite an argument between her and Sydney. Vee receives a dare to complete Sydney's dare of crossing the ladder between the two buildings, which she completes. Realizing how dangerous Nerve is, Vee attempts to report the game to the police but is disbelieved. As a result, all of the money in her and her mother's joint bank account is removed. Nerve player Ty knocks Vee out in order to keep her in the game. Vee wakes up in a shipping container, where she finds Ian, who confesses that he and Ty were players whose friend was killed in a dare in Seattle. When they tried to alert the authorities, their families' jobs, bank accounts, and identities were compromised. Vee has joined them in the secret third category of the game: "prisoners". If a prisoner can reach and win the day's final round, they regain everything. Tommy and Sydney work with Tommy's hacker friends to try and disable Nerve by altering the game's online code. They hope to prevent Vee from playing the game, but since all of the watchers' phones and profiles act as a distributed server, they cannot completely disable Nerve. Vee wins a spot in the final of Nerve, and Ian completes a dare to also gain a spot in the final, which takes place at Battery Weed. At the final, Vee and Ian are dared to shoot each other with guns, which they both refuse to do. Ty then takes Ian's place in the final and proposes a vote on whether or not he should shoot Vee. The watchers vote yes by a majority, to which Ty shoots Vee, who seemingly dies in Ian's arms. Tommy and his hackers are able to modify Nerve ' s source code to decrypt the watchers' usernames into their real names and send them a message: "You are an accessory to murder." The panicked watchers log out of the game, closing all the servers and ending Nerve. Despondent over Vee's apparent death, Ian aims his gun at Ty, but Vee stops him, revealing that she and Ty staged her murder to scare the watchers into shutting down their profiles on Nerve and ending it permanently. Tommy and his hackers manage to restore the money to all of the players. As Vee and Ian watch the sunrise, he reveals his true name to be Sam. A few months later, Vee and Sydney have reconciled, while Vee and Sam are a couple. Vee is attending the California Institute of the Arts and asks Sam to come and see her in person.

10-year-old Danny Madigan lives in a crime-ridden area of NYC with his widowed mother, Irene. Following his father's death, Danny takes comfort in watching action movies, especially a series featuring L.A. cop Jack Slater, at a condemned movie theater. Nick, the theater's owner and projectionist, gives Danny a golden ticket once owned by Harry Houdini and invites him to watch an early screening of its latest installment, Jack Slater IV. During the film, the ticket stub transports Danny into the fictional world, interrupting Slater during a car chase. Slater takes Danny to LAPD headquarters, where Danny points out evidence of Slater's fictional world, such as the presence of numerous attractive women and a cartoon cat detective named Whiskers. Danny says that Slater's friend John Practice should not be trusted as he "killed Mozart " (since he is played by the same actor as Antonio Salieri in Amadeus). Though Slater dismisses this as Danny's imagination, Slater's supervisor, Lieutenant Dekker, assigns Danny as his partner and instructs them to investigate criminal activities related to mafia boss Tony Vivaldi. Danny guides Slater to Vivaldi's mansion, recognizing its location from the start of the movie. There, they meet Vivaldi's henchman, Mr. Benedict. Vivaldi and Benedict killed Slater's second cousin, but Slater has no evidence and is forced to leave with Danny; however, Benedict is curious as to how Danny knew, and he and several hired guns follow Slater and Danny back to Slater's home. There, Slater, his daughter Whitney, and Danny thwart the attack, though Benedict gets the ticket stub and discovers that it can transport him into the real world. Slater deduces Vivaldi's plan to murder the rival mob by releasing a lethal gas. He and Danny go to stop it, but are waylaid by Practice, who reveals that Danny was right: he is working for Vivaldi. Whiskers kills Practice, saving Slater and Danny, who prevent any deaths from the gas release. After Vivaldi's plan fails, Benedict kills him and uses the stub to escape into the real world, pursued by Slater and Danny. Slater becomes despondent upon learning the truth, but cheers up after spending time with Irene. Meanwhile, Benedict devises a plan to kill the actor portraying Slater in the movie, Arnold Schwarzenegger, bring other movie villains into the real world, and take over. To help, Benedict brings the Ripper, the villain of Jack Slater III, to Jack Slater IV 's premiere to assassinate Schwarzenegger. Slater saves Schwarzenegger and kills the Ripper. Benedict shoots Slater, critically injuring him. Danny disarms Benedict, allowing Slater to shoot Benedict in his explosive glass eye, killing him; however, the blast causes the stub to be lost. With Slater losing blood, Danny knows he can save him by returning him to the fictional world, where his injury will become a flesh wound. The ticket stub falls in front of a theater playing The Seventh Seal, where the Figure of Death emerges from the screen. Death is curious: Jack Slater is missing from his lists of when people will die, and Danny is slated to die as a grandfather. Death then suggests searching for the other half of the ticket. Danny finds it and takes Slater back into his movie, where his wounds instantly heal. Danny returns to the real world before the portal closes. A recovered Slater embraces the true nature of his reality, appreciating the differences between the two worlds. Danny and Nick bond while reminiscing on their past, while Slater drives away on the screen, waving goodbye.

Dave Skylark is the host of the talk show Skylark Tonight, where he interviews celebrities about personal topics. The show's broadcast gets interrupted by news reports about North Korea, regarding its leader Kim Jong Un and concerns about its nuclear weapons. When Skylark and his crew celebrate producer Aaron Rapaport's 1,000th episode, another producer criticizes the show for not being a real news program. Upset by this, Rapaport urges change and Skylark agrees before discovering Kim is a fan of their show, prompting Rapaport to arrange an interview. CIA Agent Lacey visits the duo and requests they assassinate Kim with a transdermal strip of ricin via handshake to prevent a possible nuclear launch against the West Coast; they reluctantly agree. Skylark carries the strip inside a gum pack. Upon their arrival in Pyongyang, the group is greeted by North Korean chief propagandist Sook-yin Park and taken to the palace, where they are introduced to Kim's security officers Koh and Yu, who are suspicious of them. When Koh finds the strip, he mistakes it for gum and chews it. After making a secret request for help, Lacey airdrops them two more strips via a drone. To get it back to their room however, Rapaport is forced to evade a Siberian tiger and hide the container in his rectum, before getting caught and stripped naked by security. Skylark meets and befriends Kim, who convinces Skylark that he is misunderstood as a cruel dictator and a failed administrator, and spends the day playing basketball, hanging out, riding in his personal tank and partying with escort women together. At a state dinner, Koh suffers a seizure and diarrhea from the ricin poisoning, accidentally shooting Yu before dying. A guilt-ridden Skylark discards one of the ricin strips the next morning and thwarts Rapaport's attempt to poison Kim with the second strip. At a dinner mourning the deaths of the bodyguards, Skylark witnesses Kim's malicious self as he angrily threatens South Korean "capitalists", the United States and everyone who attempts to undermine his power, and later discovers Kim has been lying to him upon seeing that a nearby grocery store is fake. At the same time, while seducing Rapaport, Sook reveals she despises Kim and apologizes for defending his regime. Skylark returns and tries to get Sook's support to assassinate Kim, but she suggests they instead damage his cult of personality and show the North Koreans the dire state of the country. The trio devises a plan to expose Kim on-air, arming themselves with guns. In the internationally televised interview with Kim, Skylark addresses increasingly sensitive topics, including the food shortage and America-imposed economic sanctions, then challenges his need for his father 's approval. Rapaport takes over the control room to fight off the guards trying to cut the broadcast. Initially resistant and rebuffed by Skylark's claims, Kim cries and defecates himself after Skylark, having known his fondness for Katy Perry, ruins his reputation by singing " Firework ". Enraged at Skylark's betrayal, Kim shoots him and vows revenge by preparing the nuclear missiles. Skylark, whose bulletproof vest has saved him, escapes with Rapaport and Sook and hijacks Kim's tank to get to their pickup point. In a helicopter, Kim attempts to issue the command to launch the missiles, only to get shot down by Skylark before he could do so. With the nuclear threat thwarted, Sook guides Skylark and Rapaport to an escape route, saying she has to return to Pyongyang to maintain security. Skylark and Rapaport are later tracked down and rescued by SEAL Team Six members disguised as North Korean soldiers. Back in America, Skylark writes a book about his experience, Rapaport returns to work as producer and maintains contact with Sook via Skype, and North Korea becomes a denuclearized democracy under Sook's interim leadership.

In 2035, society's dreams are taxed by the government, which has mandated increased surveillance measures upon the general public. Dream Auditor James Preble travels to the countryside home of the elderly Arabella Isadora, an artist who lives alone with her pet tortoise Sugar Baby in the self-titled Strawberry Mansion. Arabella's dreams are stored on a vast library of VHS tapes, which Preble reviews to conduct an audit; at Bella's insistence, he stays in her guest room. In his dreams, he regularly spends his time in a pink room with Buddy, who presents him with commercial products; one such session is interrupted by a younger apparition of Bella. During his audit, Preble begins to fall in love with the younger Bella; he grows closer to her in the real world, and she reveals that the government allows advertisers to transmit ads to a person's dreams. She presents him with homemade headgear designed to hold them off; it successfully defends against Buddy. Sometime later, she dies peacefully and is discovered by Preble. Bella's estranged son Peter Bloom arrives with his wife, Martha, and son, Brian, to handle Bella's affairs. Peter suggests to Preble that he is finished with his audit and may now leave. A suspicious Preble discovers Martha and Brian destroying the VHS tapes mid-audit and declares it a federal offense, angrily informing Peter that he will have to notify his superiors; Peter responds by later knocking him unconscious with a bowling pin. Preble vividly dreams of himself being chased around the house by exaggerated incarnations of the Blooms before he is rescued by the younger Bella. They escape to a small island, where they sustain and entertain themselves for a long time. Eventually, Bella reveals that Peter is the CEO of the country's largest advertisement corporation and that his knowledge of the dream-infiltrating advertisement scheme has placed him in danger. Various incarnations of Buddy appear and Preble wakes up; Peter knocks him out a second time and sets the room on fire; he and the family leave Preble to die. Preble reawakens in his dream as the captain of a ship, helmed by two humanoid sailor rats, Richard and Marcus Rat. For the next seven years, they sail the seas in search of Bella, but the Rats eventually begin to question the mission's viability. As the fire in his room picks up, a giant Blue Demon attacks the ship at sea. Preble's surroundings dissolve around him and he dines with the normal-sized Blue Demon, who is keeping Bella in servitude. After the Demon goes to bed, Preble frees Bella and they escape back to the island. Bella warns him that he cannot stay with her for much longer, as he will soon die from the fire if he does not wake up. At her insistence, Preble turns into a caterpillar and spends the next several centuries traversing the earth, finally arriving at his pink room. He is confronted by a wrathful Buddy, but Bella arrives to help Preble overpower and ultimately vanquish him. Preble and Bella are bid farewell by a sendoff party of all of the dream's characters; an apparition of Peter warmly greets and apologizes to both of them. They float off into space but find themselves disintegrating as Preble's mind continues to feel the fire's heat. Preble awakens and escapes the house, but reenters to retrieve the headgear, Sugar Baby, and a tape. Preble sorrowfully watches Strawberry Mansion burn down. Upon returning home, Preble reminisces on the VHS tape, the contained dream of which shows Bella on a date with a mysterious grass man; Bella eventually brushes off the grass to reveal Preble underneath. The film ends with the two of them walking hand-in-hand to Strawberry Mansion.

Chance Buckman is the head of a Houston -based oil-well firefighting outfit. With a team that includes Joe Horn, Greg Parker, and George Harris, Chance travels around the world putting out blazes at well heads from industrial accident, explosion, or terrorist attack. Chance enjoys the thrills, but longs for ex-wife Madelyn. She divorced him 20 years earlier, taking their daughter Letitia with her, because Madelyn could not bear to see her husband risk his life. Though they love each other, Madelyn could not deal with her terror that Chance might be badly injured or burn to death in a fire. While extinguishing a burning wellhead, Chance suffers a near-fatal accident when he is crushed by a bulldozer blade. Against his wishes, his daughter Letitia (Tish) visits him in the hospital, summoned by his old friend and former firefighting partner Jack Lomax and fetched by Greg Parker in the Buckman Company's corporate jet. She also pursues Greg Parker to a well fire in Louisiana despite Greg's notorious reputation for using fires to pick up women (generally, any woman he takes to a fire ends up in bed with him). In the case of Buckman's spitfire of a daughter, however, after considerable initial friction, Greg and Tish fall in love and marry five days after their first meeting. In spite of Greg's reputation, Buckman comes to trust his daughter's choice and accepts Greg into the family. Madelyn, projecting her own fears onto her daughter, though gracious, is rather less accepting, despite her liking for Greg. Greg suspects that his new father-in-law is growing increasingly protective of him after the marriage in an effort to protect his daughter from heartbreak should her new husband be harmed or killed. Tish wishes to see the fires that her husband and father fight, which neither man encourages. Her father relents and allows her to accompany Greg into the field. Chance, trying to reunite with his ex-wife, leaves the Buckman Company to accept an executive position with his old friend Jack Lomax on the board of directors of Lomax Oil as a way to win her back. Chance gives his company to his son-in-law as a "wedding present", although Greg's pride compels him to tell Buckman he "doesn't want any gifts" and that he will "pay twice what it's worth." Greg and Tish begin traveling the world to put out oil fires. Soon, the older couple announce that they will remarry, to the delight of Tish. Madelyn is happy to see her husband in a safe job, but before too long, Chance becomes bored with corporate life and longs to be back in the field. As Jack Lomax earlier told Tish, "Your father is the best there is at what he does. No man can walk away from that." Greg encounters problems with a fire in Venezuela —five oil wells in a tight line burning all at once, further compounded by guerrillas who are trying to undermine the operation. He asks Chance to return and help fight the fire. Chance does so without hesitation. Buckman goes to Venezuela in a Texas Air National Guard transport full of firefighting gear, unaware that Madelyn and Tish have followed him to Caracas. Madelyn uses Jack Lomax's influence with the president of Venezuela to get Tish and herself to the oilfield where the fire is burning. Madelyn declares "This is it for me," in the sense that it will either make or break her ability to deal with the fires once and for all, fully aware that her relationship with Chance is on the line. The Hellfighters put out the fires with the help of the Venezuelan Army, while under attack by rebel warplanes that strafe the oilfield. Madelyn explodes in anger at what she perceives as the Venezuelans' inability to protect the team from the unexpected air raid, railing at the Venezuelan army and civil officials for allowing the guerrillas to get close enough to attack. Chance pulls her away during her tirade. She snaps, "Damned if I understand your attitude!", to which he replies, "It's very simple—you'll do." When Greg asks Tish for her take on it, she just smiles and says, "I think we ought to get her a tin hat," referring to the bright red hardhats with the Buckman Company logo worn by the Hellfighters.

A case study demonstrates how individuals with lower IQ scores and incomes reproduce at greater rates than the more affluent and intelligent, reducing future humanity's average intelligence. In 2005, US Army librarian Joe Bauers is selected for a government suspended animation experiment as the most average individual in the armed forces. Lacking a suitable female candidate, the military hires a prostitute, Rita, by dismissing charges against her and paying off her pimp, Upgrayedd. A scandal involving the officer overseeing the initiative and Upgrayedd forces the closure of the military base under which Joe and Rita were placed in hibernation, suspending the project indefinitely. Over the next five hundred years, average intelligence decreases. As a result, infrastructure deteriorates, low comedy and vulgarity define culture, and consumerism is left unfettered. Five hundred years later, a garbage avalanche disturbs Joe and Rita's hibernation chambers. Joe awakens in Frito Pendejo's apartment in previously occupied DC. Asking for help, he is laughed at by the residents, who speak a mixture of "hillbilly, Valley Girl, inner-city slang, and various grunts." He enters a hospital, believing the army administered hallucinogenic drugs to him. Joe realizes the year upon reading a magazine and his hospital bill, but he is arrested at Carl's Jr. for not having a bar code tattoo and being unable to pay his bill. Joe is sent to trial; Frito represents him but alleges that he destroyed his apartment. The judge perceives Joe’s accent to have a homosexual demeanor, finding him guilty and sentencing him to prison. Rita resumes her job as a prostitute. Joe is sent to a correctional facility, where a faulty ID machine registers his name as "Not Sure" and takes a simplified aptitude test. He escapes from prison after deceiving a guard by saying he had served his sentence and was scheduled for release. Joe visits Frito, who agrees to guide him to a time machine —located within a large Costco store—after Joe promises to create a savings account in Frito's name when he returns to the 21st century, earning him billions in compound interest. Rita, Joe, and Frito enter the store, but Joe is arrested after his bar code is scanned. He is taken to the White House and appointed secretary of the interior by President Dwayne Elizondo Mountain Dew Herbert Camacho due to extraordinary performance on the aptitude test. In an address, Camacho states that Joe will resolve unfruitful crop yields, dust storms, and a stagnant economy, among other issues, within a week or face imprisonment. Joe and Rita visit a crop field. Frito gives him a useless map to the time machine. Joe discovers that the country's crops are being watered with Brawndo, a sports drink whose parent company owns the FDA, the HHS, and the FCC; the concentration of electrolytes in Brawndo has destroyed natural topsoil, causing dust storms. Despite opposition to his plan in the form of circular reasoning from the Cabinet, Joe convinces Camacho to use water instead of Brawndo in irrigation. Consequently, Brawndo stocks severely depreciate, leaving half the country's citizens unemployed and Brawndo filing for bankruptcy, inciting riots as immediate improvement to the crops did not materialize. At the Extreme Court, Joe is sentenced to public execution in a monster truck demolition derby against undefeated rehabilitation officer Beef Supreme. Rita and Frito discover that Joe's reintroduction of water to the soil allowed crops to grow. Rita pays a cameraman to broadcast the crops on the stadium's Jumbotron, prompting Camacho to grant Joe a presidential pardon. After discovering that the time machine is just an amusement ride, Joe becomes president and marries Rita, with whom he has "the three smartest kids in the world". Frito is appointed as the vice-president, and with 8 wives, he ultimately begets "32 of the dumbest children to ever walk on Earth". The narrator states that while Joe did not single-handedly save mankind, he did set in motion the chain of events that eventually undid humanity's "dumbing-down".

Jack Hall, a paleoclimatologist for the NOAA, drills for ice-core samples in the Larsen Ice Shelf with his colleagues Frank and Jason. A large portion of the ice shelf splits away, but they manage to escape. At a United Nations conference on global warming in New Delhi, Jack shares his theory that climate change could lead to a new ice age through the disruption of the North Atlantic Current. United States vice president Raymond Becker is dismissive of Jack's research, but Professor Terry Rapson, a Scottish oceanographer, befriends him over their shared concerns. Tokyo is struck by a giant hailstorm, and astronauts from the International Space Station spot three gigantic superstorms above Canada, Europe, and Siberia. Rapson's team notice severe temperature drops from multiple buoys in the North Atlantic, providing evidence for Jack's theory and that a climate shift may already be occurring. Remnants of a hurricane spawn a destructive tornado outbreak over the L.A. Basin. Three helicopters sent to rescue the British royal family from Balmoral Castle crash in Scotland after they fly through the eye of the European superstorm. Jack and Rapson's teams build a forecast model that predicts that the climate shift will occur in 6–8 weeks (later revised to 7–10 days). Rapson shares with Jack that siphoned air from the upper troposphere will flash freeze anything caught in the eye of a cyclone with temperatures below −150 degrees Fahrenheit (−101 degrees Celsius), which caused the royal family helicopter crashes by freezing the fuel on board. In New York City, Jack's son Sam, along with his friends Brian and Laura, participate in an academic decathlon, where they befriend JD. The North American superstorm creates strong winds and rain that flood Manhattan. All transportation halts, stranding the city's population. While helping to rescue two French-speaking tourists, Laura cuts her leg. A massive storm surge inundates the city, forcing Sam's group to seek shelter at the New York Public Library. Sam contacts Jack and his mother Lucy, a pediatrician, through a working payphone. Jack warns Sam of the impending superstorm, urges him to stay inside and warm, promising to rescue him. Rapson and his team succumb to the European storm. Lucy remains in her hospital, caring for bedridden patients, where the authorities eventually rescue them. Per Jack's suggestion, President Blake orders the populations of the southern states to be evacuated to Mexico, while instructing those in the northern areas to shelter-in-place. Jack, Jason, and Frank depart by snowshoe to NYC. While trekking across Pennsylvania, Frank falls through the skylight of a mall covered in snow, only stopped by his tether to Jack and Jason. When more of the skylight begins to crack, he sacrifices himself by cutting the tether. In the library, most survivors decide to move south on the frozen floodwater, despite Sam's warnings. In Mexico, Becker learns that Blake's motorcade perished in the superstorm and that he is now President. Laura develops sepsis from her injury, leading Sam, Brian, and JD to scour an abandoned Russian cargo ship that drifted into the city before the water froze for medical supplies. After finding penicillin, they encounter a pack of escaped wolves from the Central Park Zoo. The boys fight the wolves and return to the library before the eye of the North American superstorm passes over and freezes Manhattan. Jack and Jason barely escape the eye by taking shelter in an abandoned restaurant. Days later, the superstorms dissipate. Jack and Jason reach the library, finding Sam's group alive. Jack sends a radio message to US forces who arrive by helicopter. While being evacuated, other groups of survivors emerge. In his first address as president, Becker apologizes for his ignorance and shares the news of the New York survivors and further rescue missions being carried out. On the International Space Station, astronauts look down in awe at the ice sheets covering much of the Northern Hemisphere and remark that the air has never looked so clear.

In the early 1950s, Pete Verrill is invited by his friend, director John Wilson, to rewrite the script for Wilson's latest project: a film with the working title of The African Trader. The hard living, irreverent Wilson convinces producer Paul Landers to have the film completely shot on location in Africa, even though doing so would be extremely expensive. Wilson explains to Verrill that his motivation for this has nothing to do with the film - Wilson, a lifelong hunter, wants to fulfill his dream of going on an African safari; he even purchases a set of finely crafted hunting rifles and charges them to the studio. Upon landing in Entebbe, Wilson and Verrill spend several days at a luxury hotel while Verrill finishes the script and Wilson makes arrangements for the safari. Verrill finds himself growing fond of Wilson after the latter defends him against a fellow guest who makes antisemitic remarks in front of Verrill (who happens to be Jewish) and challenges the hotel manager to a fistfight after witnessing him insult and belittle a black waiter for spilling a drink, which Wilson loses. The two men constantly argue over Verrill's changes to the script, particularly his insistence that Wilson does not use his original planned ending, where all of the main characters are killed on-screen. Wilson hires a pilot to fly him and Verrill out to the hunting camp of safari guide Zibelinsky and his African tracker Kivu, whom Wilson is quick to bond with. The film's unit director, Ralph Lockhart, is also present and insists that Wilson start pre-production before the cast arrives, to which Wilson replies he'll do so after he shoots a "tusker". Verrill gradually becomes disenchanted with Wilson, who keeps going out to hunt despite his poor health and seems completely indifferent to the success of his movie. He even questions why Wilson would want to kill such a magnificent beast. Confronted, Wilson tells Verrill off and accuses him of "playing it safe" and not wanting to risk anything. He calls hunting a "sin that you can get a license for" and doesn't try to convince Verrill otherwise when he threatens to resign and go back to London. Landers arrives in Entebbe and insists that Verrill stay on, revealing that the studio is at risk of bankruptcy if the movie isn't finished. When Verrill does return, he is informed by Lockhart that Wilson, without consulting anyone, has decided to move the entire production to Kivu's home village despite Landers spending most of the budget on a prefabricated set. The cast, now unable to stay at the hotel, go to Zibelinsky's camp and find Wilson waiting for them with a lavish banquet. He humiliates Landers and takes advantage of several days of rain to resume his safari, now accompanied by professional elephant hunter Ogilvy. Verrill follows after Wilson again taunts him for cowardice. Wilson finally gets his chance to kill the "tusker", but when the time comes to shoot, he suddenly finds he can't pull the trigger. The elephant suddenly charges after seeing its child move too close to Wilson, and Kivu tries to scare it off only to be fatally gored by the elephant's tusks. Wilson, horrified by Kivu's death, returns to the set. He sees the villagers beating drums and asks Ogilvy what they mean. Ogilvy replies that they are communicating to everyone how Kivu died: "white hunter, black heart". Recognizing that he is ultimately to blame for what happened, Wilson tells Verrill that he was right: the film does need a happy ending after all. Sitting in his director's chair as the actors and crew take their places to film the opening scene of The African Trader, a now humbled Wilson quietly mutters "Action".