Ex-soldier Ryan Reeve wakes up in the back of a moving van next to a young tied-up boy, Alex, who is being held prisoner. Strangely, the boy seems to think Reeve is the kidnapper though he has no memory of ever having seen the boy before, and looking at his watch, he last remembered it being six months previously. After freeing the boy, making a run for it, and attempting to figure out what has happened to him, all he remembers is being at a facility treating his severe PTSD. As one of their pursuers catches up to them, suddenly he blacks out again and awakes in a room with a mysterious young man (same as before) named Harkin Langham, who seems to think he is someone else. When Langham discovers who he really is, he disables Reeve and knocks him out. Reeve then wakes up in a mysterious bedroom having sex with a beautiful young woman. She identifies herself as a prostitute named Dana, who seems to remember meeting and engaging in sexual activity with a much more violent and sociopathic version of Reeve. He tries to explain his predicament, but she remains skeptical. He asks her to come with him, but she says she cannot leave as she is the "property" of a Russian gangster named Sergio. Reeve offers to free her if she will help him solve the mystery that his life has become. The two manage to escape, but Reeve again loses consciousness when the mind control system reboots and again Langham catches up to him. He must work out what is happening in bursts of exactly nine minutes and forty-seven seconds, as the control and conscious awareness of his body are repeatedly being hijacked and shuffled through different scenarios by person/s unknown. He teams up with Dana as he battles a conspiracy in mind control known as "Anomaly" led by Langham. Langham, meanwhile, urges him to stop fighting it, as it has nothing to do with him, however, he is convinced otherwise.

A satellite, just launched from a Space Shuttle orbiter, collides with an unidentified object, which, after being spotted on radar moving at great speeds, had positioned itself just over the ship. The collision kills an astronaut in the launch bay. The events are witnessed by Bancroft and Price, the astronauts aboard. After returning to Earth, they are stonewalled when they try to discuss what happened. Harry Forbes, deputy director of NASA, simply tells them that "everything is going to be all right". After it makes a controlled landing in the Arizona desert, the damaged alien spacecraft is taken to Wolf Air Force Base in Texas and installed in Hangar 18, where scientists and other technicians, headed by Harry Forbes, can study it. Due to an impending presidential election, government officials are anxious to prevent any public knowledge of the event. Meanwhile, unbeknownst to Forbes, the Air Force puts out a news story blaming Bancroft and Price for the death of their colleague and for the destruction of the satellite. The men know that they can prove their innocence by viewing the telemetry tapes which recorded the UFO; but when they view them, all evidence of the object has been erased. Through a friend who works at a remote tracking station, they see the real telemetry and discover where the alien craft landed. They set out to expose the cover-up and clear their names. In the hangar, investigators enter the ship and find its two crew members dead. They determine that, during the collision with the satellite, chemicals were released in the craft that produced a short-lived toxic gas. They find a human woman in a stasis chamber, who later wakes up, screaming. They realize that symbols on the control panels match those used by ancient Earth civilizations. Video on the ship's computer shows extensive surveillance of power plants, military bases, industrial plants and major cities worldwide. Autopsies performed on the aliens show that they and humans had similar evolutionary processes. A scientist deduces that the ship could not have reached Earth on its own, but must have been launched from a much larger, faster and more long-ranged mother ship. In their pursuit of the truth, Bancroft and Price get closer to Hangar 18 but are targets of government agents. They elude one team, who are killed during a high-speed chase. Later, they find that the brakes on their rental car have stopped working, and after careening along roads, they come to rest on the grounds of a gas refinery. Agents begin shooting at them, so they drive off in an oil tanker. With the agents in pursuit, Price climbs onto the tanker, lets some gas out of the truck, lights an emergency flare, and tosses it. Their pursuers crash and are killed, but Price is fatally shot. When Forbes learns of Price's death, he demands the Air Force to take Bancroft to Hangar 18, or he will go to the press with the truth. Their cover-up and careers now threatened, government officials decide to remotely fly an explosives-filled plane into Hangar 18 to destroy all evidence of the event. The researchers have determined that the aliens have been to Earth before and that human beings are, in fact, their descendants. Further examination of the video footage reveals that the industrial and military sites are "designated landing areas", suggesting that the aliens are preparing to return. When Bancroft arrives at the base, he crashes through the base's security gate and, hiding in a warehouse, is discovered by Forbes, who takes him to Hangar 18 and the alien craft. Just as a researcher reveals that a translation of the aliens' language indicates that they are about to return, the plane crashes into Hangar 18, creating a huge explosion. The next day, a news report says that Bancroft, Forbes and their group of technicians survived the blast, shielded inside an alien spacecraft. Forbes schedules a press conference for that afternoon.

In spring 1978, in the Northland town of Kaitaia, nineteen-year-old Gerry Austin (a.k.a. 'Blondini') steals a lost wallet and uses the cash and driver's licence to rent a yellow Mini. With no particular aim in mind, he drifts down to Auckland. Meanwhile in Auckland, the middle-aged John fails to convince Sue, his girlfriend of six years, to stay with him. After a night of drinking, John decides to travel to Sue's sister's home in Invercargill to win her back. Searching for transport, John saves Gerry from receiving a ticket for failing to wear a seat belt. As thanks, Gerry offers John a lift part of the way. The duo stop for petrol in northern Waikato but accidentally drive off without paying, drawing police attention to the car. Further down the road, Gerry and John pick up Shirl, another drifter heading to Wanganui. After Shirl informs the duo that she is a virgin, Gerry makes a bet that this will change before reaching Wanganui. After purposely stealing petrol in the central North Island, they are pursued by a motorcycle officer, and avoid arrest by driving into a car wrecker. After Shirl leaves, Gerry and John travel onward to Wellington and meet with Mulvaney, an old associate of John's. Mulvaney supplies them with money and drugs in return for parts of the car; while staying over at Mulvaney's garage, Gerry reunites with Shirl. As the trio leave for the Interislander ferry the next morning, Gerry runs a red light and is pursued by the police through central Wellington. The trio avoid the police by driving through the Wellington railway station and stowing the Mini in an empty boxcar being shunted onto the ferry. In Picton on the South Island, the boxcar is attached to a train bound for Christchurch. Gerry, John, and Shirl ride it south, decorating the inside of the boxcar with Gerry's nickname "Blondini" and various items found in the other wagons. After a night of partying, Gerry finally wins his bet with Shirl. The trio arrive in Christchurch in the morning and learn that the wagon is not leaving for the West Coast until that night. Gerry and John spend the day on the town and return to the train. As it leaves, they notice Shirl hasn't returned, and are forced to continue without her. Stopping at a tearoom further down the coast, John and Gerry find out from a television that Shirl has been arrested for shoplifting, and that a national manhunt has been launched for the "Blondini Gang." The Mini is pursued down the Lake Hāwea shoreline by a determined policeman who almost catches Gerry and John before swerving off the road to avoid a combine harvester. Gerry stops to make sure the officer is all right and mocks the other police over the car's radio. The duo sell more parts off the car at Cromwell. At Dunedin, they meet the unhinged Snout, who helps them avoid a police roadblock and offers to buy the set of flags Gerry has gathered for the Mini's antenna. Gerry initially refuses, superstitious that the flags have kept them safe so far, but relents at John's urging. After Gerry and John leave, Snout tips the police off that they are heading for Invercargill. At the Southland town of McNab, John is spotted by police and drives off in the Mini, not realising Gerry is underneath the car. Gerry is arrested, but escapes from the police car and jumps on top of the fleeing Mini. The police attack the Mini with a PIT; Gerry falls off and is hit by the pursuing police car. John bids farewell to the injured Gerry, then takes the car and proceeds to Invercargill. A trucker at the scene refuses to move aside for the police out of respect for Gerry, whose ultimate fate is not shown. At Invercargill, John is met by a throng of admirers who have been following the Blondini Gang's cross-country journey. Members of the Armed Offenders Squad arrive. A disrespectful bystander goads them into firing at the Mini, shooting a hole in John's petrol can. While his supporters distract the officers, John diverts through a cemetery, making it to Sue's house just as the leaking petrol ignites an explosion that finally destroys the Mini. John reunites with Sue, and the two have sex while police surround the house. Bidding farewell to Sue, John surrenders, cracking jokes for the admiring onlookers as the police take him away.

Taxi portrays director Jafar Panahi as he courses through the streets of Tehran while pretending to be a share taxi driver. He wants to hear a piece of his passengers' lives and declines any payment for the services. His earliest passengers include a conservative-minded man who supports capital punishment and a woman supporting its abolition, a pirated video vendor named Omid who once lent foreign films not available in the country to Panahi, an injured man and his wife who insist on recording a last will due to their panic, and a pair of superstitious old women wanting to release their goldfishes to a holy spring. Eventually, Panahi picks up his niece, Hana, at her school. She discusses film-making and wants Panahi's advice on creating a short film for a school project; her teacher has talked about several rules on creating films in Iran, including the avoidance of siahnamayi, or portraying a dark image about the country. However, Hana's teacher also stated that people should create films as they see fit. The two stop near a coffeehouse where Panahi meets with a family friend he has not seen for seven years. The latter inquires about a burglary he recently experienced and his dilemma of not informing the authorities about the thieves, whom he personally knows, as they are poor and have nothing else to lose. Meanwhile, Hana films a case of siahnamayi herself when she spots a boy who picks up money that had been dropped on the road by a couple of newlyweds and initially refuses to return it. Finally, Panahi and Hana meet with Nasrin Sotoudeh, a human rights lawyer about to see the imprisoned Ghoncheh Ghavami and possibly convince her to give up her hunger strike. While adjusting her seat, Hana stumbles upon a purse belonging to one of the old women with the goldfishes. Sotoudeh decides to leave early so Panahi can deliver the purse, but not before giving him a rose as a goodwill for filmmakers. Panahi and Hana proceed to the springs and are able to return the purse; at the same time as this happens, a pair of thieves (or government agents) ransack the taxi, before the film cuts off.

After Columbia University parapsychology professors Peter Venkman, Ray Stantz, and Egon Spengler experience their first encounter with a ghost at the New York Public Library, the university dean dismisses the credibility of their paranormal -focused research and fires them. The trio responds by establishing "Ghostbusters", a paranormal investigation and elimination service operating out of a disused firehouse. They develop high-tech nuclear-powered equipment to capture and contain ghosts, although business is initially slow. Following a paranormal encounter in her apartment, cellist Dana Barrett visits the Ghostbusters. She recounts witnessing a demonic dog-like creature in her refrigerator utter a single word: "Zuul". Ray and Egon research Zuul and details of Dana's building while Peter inspects her apartment and unsuccessfully attempts to seduce her. The Ghostbusters are hired to remove a gluttonous ghost from the Sedgewick Hotel. Having failed to properly test their equipment, Egon warns the group that crossing the energy streams of their proton pack weapons could cause a catastrophic explosion. They capture the ghost and deposit it in an ecto-containment unit under the firehouse. Supernatural activity rapidly increases across the city and the Ghostbusters become famous; they hire a fourth member, Winston Zeddemore, to cope with the growing demand. Suspicious of the Ghostbusters, Environmental Protection Agency inspector Walter Peck asks to evaluate their equipment, but Peter rebuffs him. Egon warns that the containment unit is nearing capacity and supernatural energy is surging across the city. Peter meets with Dana and informs her that Zuul was a demigod worshipped as a servant to "Gozer the Gozerian", a shapeshifting god of destruction. Upon returning home, Dana is possessed by Zuul; a similar entity possesses her neighbor, Louis Tully. Peter arrives and finds the possessed Dana/Zuul claiming to be "the Gatekeeper". Louis is brought to Egon by police officers and claims that he is "Vinz Clortho, the Keymaster". The Ghostbusters agree that they must keep the pair separated. The next morning, Peck returns with law enforcement and city workers to have the Ghostbusters arrested and their containment unit deactivated, causing an explosion that releases the captured ghosts. Louis/Vinz escapes in the confusion and makes his way to the apartment building to join Dana/Zuul. In jail, Ray and Egon reveal that Ivo Shandor, leader of a Gozer-worshipping cult in the early 20th century, designed Dana's building to function as an antenna to attract and concentrate spiritual energy to summon Gozer and bring about the apocalypse. Faced with supernatural chaos across the city, the Ghostbusters convince the mayor to release them. The Ghostbusters travel to a hidden temple located on top of the building as Dana/Zuul and Louis/Vinz open the gate between dimensions and transform into demonic dogs. Gozer appears as a woman and attacks the Ghostbusters, then disappears when they attempt to retaliate, with its disembodied voice demanding the Ghostbusters "choose the form of the destructor". Ray inadvertently recalls a beloved corporate mascot from his childhood, and Gozer reappears as a gigantic Stay Puft Marshmallow Man that begins destroying the city. Against his earlier advice, Egon instructs the team to cross their proton energy streams at the dimensional gate. The resulting explosion destroys Gozer's avatar, banishing it back to its dimension, and closes the gateway. The Ghostbusters then rescue Dana and Louis from the wreckage and are welcomed on the street as heroes.

Struggling inventor Randall Peltzer visits a Chinatown antique store to find a Christmas present for his son, Billy. In it, Randall uncovers a small and furry creature called a mogwai (Cantonese: 魔怪, 'devil'). The owner, Mr. Wing, refuses to sell it to him, but his grandson secretly does, warning Randall to remember three important rules concerning its care – keep the creature away from light, especially sunlight, which will kill it; do not let it come in contact with water; and above all, never let it eat after midnight. In Randall's hometown of Kingston Falls, Billy works at its local bank, but fears that his dog Barney will be put down by widowed miser Ruby Deagle. His father returns and offers him the mogwai, now named "Gizmo", as a pet and informs him of the rules. Gizmo is friendly and docile, but when Billy's friend, Pete Fountaine, accidentally spills water on him, five more mogwai spawn from him – a more mischievous sort led by the aggressive Stripe, named after the mohawk -like tuft of white fur on his head. Billy shows one of the mogwai to his former elementary school science teacher, Roy Hanson, spawning another mogwai, whom the latter experiments on. Back home, Stripe and his fellow mogwai trick Billy into feeding them after midnight by sabotaging his bedside clock. They form cocoons, as does Hanson's mogwai, which soon hatch, emerging as destructive and reptilian imp-like monsters called "gremlins". Hanson is murdered by his gremlin, while those at the Peltzer house torture Gizmo and assault Billy's mother, Lynn. The duo are able to dispatch all the gremlins sans Stripe, who escapes to the local YMCA where he jumps into its swimming pool, spawning an army of gremlins that wreak havoc on Kingston Falls. Many locals are injured or outright killed during their rampage, including Deagle. The police are helpless in the ordeal, as they too fall victim to the gremlins' mischief. After Billy rescues his co-worker and girlfriend, Kate Beringer, when the gremlins attack the bar she works at, and they seek refuge in the bank, the latter discloses that her father went missing on Christmas Eve when she was nine years old, but was then found dead in their house's chimney several days later. Planning to surprise his family while portraying Santa Claus, he inadvertently slipped and broke his neck while climbing down the chimney. Still suffering from post-traumatic stress disorder due to the incident, Kate confesses how this led to her dislike of the holidays. The trio find the gremlins gathered in the local movie theater due to morning approaching and set off a natural gas explosion, killing them all except for Stripe, who left the theater earlier to retrieve candy at a Montgomery Ward store across the street. They follow Stripe into the store, where he attempts to use a fountain to spawn more gremlins, but Gizmo then opens a nearby skylight, exposing Stripe to sunlight and killing him. In the aftermath, Mr. Wing arrives at the Peltzer house to reclaim Gizmo as he scolds the family for their negligence and criticizes Western society for its carelessness with nature. However, as he turns to leave, Gizmo, having bonded with Billy, bids him goodbye. A compassionate Wing then concedes that Billy may be ready to properly care for him one day.

Jonathan Moore, an 18-year-old veterinary student at UCLA, is an expert at "Gotcha", a popular Assassin -like game where students chase each other on campus using paintball guns. Jonathan and his roommate Manolo travel to Paris during spring break. While alone in a café, Jonathan meets Sasha Banicek, a 24-year-old Czechoslovak woman, and later loses his virginity to her. Instead of going to Spain with Manolo, Jonathan accompanies Sasha to West Berlin to spend more time with her. In their hotel room, Sasha tells Jonathan that she has to go to East Berlin to pick up a package, as she works as a courier. One night, after arriving in East Berlin, Sasha sneaks out of their hotel room while Jonathan is asleep and meets with a German man, who tells her the location of the pickup of her package. Unknowingly, Sasha is monitored by Vlad, a Soviet agent. The next day, Sasha tells Jonathan that if she ever instructs him to meet her at the Café Friedrichstrasse, it means that he must immediately leave East Berlin, and hands him a package with a strudel. Noticing that Vlad is following them, Sasha tells Jonathan to meet her at a butcher shop near their hotel in one hour. Vlad chases her, but she escapes. She is ordered by the German man to use Jonathan to get the package over to West Berlin. Sasha meets Jonathan at a subway station, slipping an object into his backpack and saying that she will meet him back at the hotel. However, she later calls him and tells him to meet her at the Café Friedrichstrasse. That night, while Jonathan rushes to Checkpoint Charlie to cross into West Berlin, Sasha is caught by Vlad and the East German secret police; she is strip-searched by the Soviets, but nothing is found on her. Vlad arrives at the border crossing to search for Jonathan, who has crossed the border safely before he could be captured. Once in West Berlin, Jonathan finds that his hotel room has been ransacked and his traveler's checks have been stolen. Vlad and his henchmen eventually find Jonathan at the Spandau Citadel, the location Sasha gave him, where he meets a woman who asks for the object Sasha gave him. She is confused when he gives her the strudel, before Vlad shoots her. The agents chase Jonathan through the Citadel. Jumping into a water canal, Jonathan escapes and stumbles upon a German punk rock band headed for Hamburg, who offer him a ride to the airport. Soon after Jonathan safely makes it back to Los Angeles, a band of Soviet agents led by Vlad also arrives. Jonathan finds the object planted by Sasha, a film canister, in his backpack. He visits his parents and tells them what happened in Germany, but they do not believe him and instead accuse him of being a drug addict. Jonathan calls the CIA for help, telling them about Sasha and the film. Temporarily arrested for ramming a car, Jonathan returns the next morning to find his apartment broken into and looted. The CIA tells Jonathan to bring them the film canister. At the CIA's Los Angeles headquarters, Jonathan is surprised to find Sasha working there. Jonathan arranges a meeting with Sasha at UCLA and uses Manolo's help to separate her from the CIA agents. Sasha admits that she is actually Cheryl Brewster, a CIA agent from Pittsburgh, before Vlad and his henchmen appear and chase the pair through the campus. During their flight, Jonathan seizes a tranquilizer gun from the veterinary sciences building and uses it to incapacitate their pursuers. The Soviets are arrested and the CIA agents thank Jonathan for his help in obtaining the film. Cheryl/Sasha tells him she wants to continue their relationship, and they kiss. After they part, Jonathan talks to an attractive student who previously rebuffed him, and she coldly turns him down. As she walks away, he aims the tranquilizer gun and shoots her in the rear.

In Evans City, Pennsylvania, a man kills his wife and burns down his farmhouse. Firefighters David and Clank—both Vietnam War veterans—are called to the scene. David's pregnant girlfriend, a nurse named Judy, is called to the office of Dr. Brookmyre, where the two children of the arsonist are being treated for burns. Heavily armed U.S. troops led by Major Ryder take over Dr. Brookmyre's office. Days earlier, an Army plane carrying a bioweapon had crash-landed near the town, infecting the water supply with a virus code-named "Trixie," which is highly contagious and causes victims to either die or become hysterical and homicidally insane. Government officials send Colonel Peckem and Dr. Watts, who worked on the creation of the virus, to Evans City to contain the virus and work towards a cure. Martial law is declared in Evans City and a quarantine is placed on the town. Army soldiers forcibly move the townspeople into a high school, rousting many from their homes, and shoot anyone attempting to escape. Bombers armed with nuclear weapons are dispatched to destroy the town if necessary. David, Judy, Clank, teenager Kathy Fulton, and her father Artie try to find a way to escape the town. After spending the night hiding in a country club, the group attempts to escape through the nearby woods, eluding soldiers both on the ground and in an overhead helicopter. They overpower several soldiers in a house. One of the soldiers discloses what he knows about the virus to David, but when one of the soldiers reaches for his gun, Clank opens fire and kills the soldiers. David tells Judy about what he knows about the virus and that Kathy, Artie, and probably Clank are infected. After Clank beats him for attempting to have sex with Kathy, Artie hangs himself. Kathy wanders outside and is killed by soldiers. Realizing he is infected, Clank kills several soldiers to give David and Judy time to escape. He is then shot and killed. The next night, Judy, now visibly infected, is killed by armed civilians. Angry and frightened, David surrenders to the military. After being taken into custody, David eventually realizes that he is immune to the virus, but he keeps the knowledge to himself. Dr. Watts develops a potential cure for the virus but when he tries to take samples to Peckem and Ryder, he is killed and the samples are destroyed in a stampede of infected townspeople breaking free from quarantine. Depressed and distraught by his experiences in Evans City, Colonel Peckem is ordered to relocate to Louisville, where symptoms of the virus have been reported.

In fictional Hadleyville, Pennsylvania, the local auto plant, which supplied most of the town's jobs, has been closed for nine months. Former foreman Hunt Stevenson goes to Tokyo to try to convince the Assan Motors Corporation to reopen the plant. The Japanese company agrees and, upon their arrival in the United States, they take advantage of the desperate work force to institute many changes. The workers are not permitted a union, are paid lower wages, are moved around within the factory so that each worker learns every job, and are held to seemingly impossible standards of efficiency and quality. Adding to the strain in the relationship, the Americans find humor in the demand that they do calisthenics as a group each morning and that the Japanese executives eat their lunches with chopsticks and bathe together in the river near the factory. The workers also display a poor work ethic and lackadaisical attitude toward quality control. The Japanese executive in charge of the plant is Takahara "Kaz" Kazihiro, who has been a failure in his career thus far because he is too lenient on his workers. When Hunt first meets Kaz in Japan, the latter is being ridiculed by his peers and being required to wear ribbons of shame. He has been given one final chance to redeem himself by making the American plant a success. Intent on becoming the strict manager his superiors expect, he gives Hunt a large promotion on the condition that he work as a liaison between the Japanese management and the American workers, to smooth the transition and convince the workers to obey the new rules. More concerned with keeping his promotion than with the welfare of his fellow workers, Hunt does everything he can to trick the American workers into compliance, but the culture clash becomes too great and he begins to lose control of the men. In an attempt to solve the problem, Hunt makes a deal with Kaz: if the plant can produce 15,000 cars in one month, thereby making it as productive as the best Japanese auto plant, then the workers will all be given raises and jobs will be created for the remaining unemployed workers in the town. However, if the workers fall even one car short, they will get nothing. When Hunt calls an assembly to tell the workers about the deal, they balk at the idea of making so many cars in so short a time. Under pressure from the crowd, Hunt lies and says that if they make 13,000, they will get a partial raise. After nearly a month of working long hours toward a goal of 13,000—despite Hunt's pleas for them to aim for the full 15,000—the truth is discovered and the workers walk off the job. At the town's annual 4th of July picnic, Hadleyville mayor Conrad Zwart informs the people that Assan Motors plans to abandon the factory again because of the work stoppage, which would mean the end of the town. The mayor threatens to kill Hunt, but Willie, one of the workers, intervenes, insisting that Hunt is not to blame for the closure. Zwart abandons the picnic, even more furious with the townspeople taking Hunt's word over his. Hunt comes clean about the 15,000 car deal. He responds by addressing his observations that the real reason the workers are facing such difficulties is because the Japanese have the work ethic that too many Americans have abandoned. While his audience is not impressed, Hunt, hoping to save the town and atone for his deception, and Kaz, desperate to show his worth to his superiors, go back into the factory the next day and begin to build cars by themselves. Inspired, the workers return and continue to work toward their goal and pursue it with the level of diligence the Japanese managers had encouraged. Just before the final inspection, Hunt and the workers line up a number of incomplete cars in hopes of fooling the executives. The ruse fails when the car that Hunt had supposedly bought for himself falls apart when he attempts to drive it away. The strict CEO is nonetheless impressed by the workers' performance and declares the goal met, calling them a "Good team," to which Kazuhiro replies "Good men." As the end credits roll, the workers and management have compromised, with the latter agreeing to partially ease up on their requirements and pay the employees better while the workers agree to be more cooperative, such as participating in the morning calisthenics, which are now made more enjoyable with the addition of aerobics class-style American rock music.

During the Vietnam War, a group of United States Marine Corps recruits arrive for eight weeks of Recruit Training at Parris Island, where Senior Drill Instructor Gunnery Sergeant Hartman uses harsh methods to train them for combat. Among the recruits are the wisecracking J. T. Davis, who is nicknamed "Joker" after mocking Hartman, and the overweight and dimwitted Leonard Lawrence, whom Hartman nicknames " Gomer Pyle ". During bootcamp, Pyle struggles to meet Hartman's expectations and is eventually paired with Joker. Pyle shows signs of improvement, but during an inspection, Hartman discovers a jelly doughnut in Pyle's footlocker. Believing the platoon has failed to improve Pyle, Hartman begins a policy of collective punishment in which he will punish everyone except for Pyle for each mistake he makes. In retaliation, the recruits haze Pyle with a blanket party, which Joker reluctantly participates in under pressure. Afterwards, Pyle appears to reinvent himself into a model recruit, showing particular expertise in marksmanship. This impresses Hartman but worries Joker, who believes Pyle may be suffering a mental breakdown after seeing Pyle talk to his rifle. The night before the new Marines are to leave Parris Island, Joker, on fire watch, discovers Pyle in the barracks latrine loading his M14 rifle with live ammunition, executing drill commands, and loudly reciting the Rifleman's Creed. Awakened by the commotion, Hartman orders Pyle to put down the rifle, but Pyle fatally shoots Hartman and then kills himself in front of Joker. By late January of 1968, Joker is a sergeant based in Da Nang for the newspaper Stars and Stripes alongside Private First Class "Rafter Man", a combat photographer. Their base is unsuccessfully raided as part of the Tet Offensive. The following morning, Joker and Rafter Man are sent to Phu Bai, where Joker searches for and reunites with Sergeant "Cowboy" Evans, a friend from Parris Island who now serves in a unit dubbed the "Lusthog Squad". During the Battle of Huế, platoon leader Lieutenant "'Mr. Touchdown'" Schinoski is killed, leading Sergeant "Crazy Earl" to take his place as squad leader. As they enter the city, the squad engages in combat with enemy forces and secure the area. Later, during a patrol, a booby-trapped rabbit toy kills Crazy Earl, leaving Cowboy in command. Becoming lost in the city, the squad is attacked by a Viet Cong sniper who fatally shoots "Eightball" and "Doc Jay". As the squad closes in on the sniper's location, Cowboy is killed. Assuming command, squad machine gunner "Animal Mother" leads an attack on the sniper. Joker locates her first, but his M16 rifle jams. The sniper, a teenage girl, overhears this and opens fire, while Rafter Man shoots and mortally wounds her. As the squad converges on the sniper, she begs for death, leading to an argument over whether to kill her or leave her to die in pain. Animal Mother agrees to a mercy killing but only if Joker will handle it; after some hesitation, Joker shoots her. As night falls, the Marines march to the Perfume River singing the " Mickey Mouse March ". A narration of Joker's thoughts conveys that, despite his being "in a world of shit", he is glad to be alive, and is "not afraid".

During the American Civil War, Captain Robert Gould Shaw is injured at the Battle of Antietam and returns home to Boston on medical leave. Shaw accepts promotion to Colonel commanding the 54th Regiment Massachusetts Volunteer Infantry, one of the first black regiments in the Union Army. He asks his friend, Cabot Forbes, to serve as his second in command. Their first volunteer is a mutual friend, Thomas Searles, a bookish, free African-American. Other recruits include John Rawlins, Jupiter Sharts, Trip, and a mute boy drummer. After the Emancipation Proclamation, the men of the 54th are told the Confederacy will execute any black soldiers captured in Union uniform along with their white officers. Despite this threat, the 54th's recruits turn down an offer to be honorably discharged and undergo rigorous training under Sergeant-Major Mulcahy. Trip is arrested while AWOL. After having him flogged, Shaw learns Trip left camp to replace his worn out shoes. Shaw confronts the base's racist quartermaster, who is holding back their supplies. When the men realize the Federal government pays black soldiers about three-quarters the salary of white soldiers, Trip encourages the men to refuse their pay. Shaw tears up his pay stub in solidarity. In recognition of his mentorship of the younger soldiers, and his advice to Shaw regarding the thoughts and morale of the men, Rawlins is promoted to Sergeant-Major. Once trained, the 54th comes under the command of General Charles Harker and is ordered by Colonel James Montgomery to sack and burn Darien, Georgia. Shaw initially refuses, but agrees under threat of being relieved. Tired of seeing his men used for manual labor and raids on civilians he advises Harker and Montgomery he will report their profiteering to the war department unless the 54th is given a combat assignment. The regiment goes into battle at James Island, South Carolina and repels a Confederate attack. Thomas is wounded in the action but saves Trip's life. Shaw offers Trip the honor of bearing the regimental flag in battle. He declines, not believing the war will result in a better life for slaves. General George Crockett Strong informs his regimental commanders of a major campaign to secure a foothold at Charleston Harbor, and describes the initial attack at Morris Island which requires a frontal assault on Fort Wagner, whose only landward approach is a strip of open beach. Shaw volunteers the 54th. The night before the battle, the black soldiers conduct a religious service, give thanks and seek God's help. The next morning the 54th deploys for the assault to the cheers of white Union troops who had scorned them earlier. The 54th suffers heavy losses in a daytime assault, and takes cover in the dunes until sundown. Attempting to rally his stalled men, Shaw is killed. Trip lifts the flag, and leads survivors toward the fort, brandishing the flag until he is mortally wounded. Forbes leads a party into the fort's outer defenses where Charlie Morse is killed, and Thomas is wounded. A small number of survivors, including Forbes, Rawlins, Thomas, and Jupiter, come face to face with a Confederate gun and the screen fades to black, implying their deaths. After sun up the next day, Confederate soldiers remove the bodies of Union soldiers from the beach, raise the Confederate flag over the fort, and bury the corpses in a mass grave. Shaw's body slides into the excavation and comes to rest next to Trip's. An epilogue reveals that although Fort Wagner was never captured, the courage displayed by the 54th led to the Union Army accepting thousands of Black men for combat. President Abraham Lincoln credited the move with helping to turn the tide of the war.

Former student radical Moses Wine now works as a private investigator. He is contacted by Lila, an ex-girlfriend from his college days, who is working in the election campaign for Miles Hawthorne, a politician who is running to be Governor of California. Lila takes Moses to meet Hawthorne's campaign coordinator Sam Sebastian, who is concerned about a fake campaign flyer supposedly showing former Berkeley radical Howard Eppis together with Hawthorne and endorsing him. Knowing that Moses was a former contemporary of Eppis, Sam hires him to find out if Eppis is behind it. Eppis was one of a notorious group of radicals known as the California Four and has been in hiding for years. Moses sets about trying to track him down by contacting some of his old associates. He is given the name of Oscar Procari Jr, the son of a businessman and a supporter of Eppis, who proves elusive. Meanwhile, Moses and Lila visit the printing company and trace the order for the flyers to an electronics store owned by a Korean man, Harold Pak Chung, who disappears after Moses tracks him to a casino. Moses then finds Lila murdered in her apartment. Later he meets with Sam, who seems more concerned about the publicity and the effect it will have on Hawthorne's campaign. Rather than be fired, Moses quits. Moses encounters a woman named Alora and discovers she is the niece of another of the California Four, Luis Vasquez, who says that her uncle met Lila on the night she died and has now disappeared. Procari's father contacts Moses and they meet. Procari says that he hasn't seen his son in years and blames Eppis for turning his son away from him. Procari offers to pay Moses to find his son, but Moses declines. Meanwhile, Sam re-hires Moses as Eppis has contacted him threatening a series of bombings but that the police think it is a hoax. Sam gives him a typewritten note with an address, which Moses visits and discovers Eppis now living a comfortable suburban lifestyle and no longer a radical. Moses is followed to the address by two hitmen, who burst in and try to kill them, but leave when Moses triggers an alarm. The hitmen try to kill Moses again at his office, but Alora and her associates ambush them. They interrogate the hitmen and find they were hired by Pak Chung and that they killed Lila when they kidnapped Vasquez, but don't know where he is being held. Moses calls the police to warn them about the bombings. Pak Chung has rigged a van with explosives and drives it by remote control while Luis Vasquez is unconscious at the wheel. Moses finds Pak Chung near one of the target sites and kills him before he can carry out the bombing. A tape recording is found nearby supposedly by Eppis claiming responsibility for the bombing. Later Sam reveals himself as Oscar Procari and that his father was behind Pak Chung and the attempt to fix the election by implicating Hawthorne with Eppis.