En 1943, en préparation d’un déploiement à l’étranger, 400 pilotes et 3600 hommes d’équipage du 351 groupe bombardier se rassemblent sur une base aérienne du Colorado. A leur arrivée en Angleterre, ils sont accueillis par la Royal Air Force et commencent leur entrainement, notamment en assistant à des conférences sur la sécurité. Leur première mission nécessite un décollage à 15 secondes d’intervalle.
The film takes place aboard an American submarine in the Pacific during World War II. The sub's commander (Brady) is ordered to stop and pick up an underwater demolition team led by Lt. Hayes (Hunter), whose mission is to locate and destroy a U.S. submarine sunken in a lagoon off Bikini Atoll before the Japanese are able to raise it and capture the advanced radar system on board.
Brigadier General William Mitchell tries to prove the worth of the Air Service as an independent service by sinking a battleship under restrictive conditions agreed to by Army and Navy. He disobeys their orders to limit the attack to bombs under 1,000 pounds and instead loads 2,000 pounders. With these, he proves his aircraft can sink the ex-German World War I battleship Ostfriesland, previously considered unsinkable. But his superiors are outraged.
The Hurt Locker opens with a quotation from War Is a Force That Gives Us Meaning, a best-selling 2002 book by Chris Hedges, a New York Times war correspondent and journalist: "The rush of battle is a potent and often lethal addiction, for war is a drug."
The film covers the court-martial of two U.S. Marines, Lance Corporal Harold Dawson and Private Louden Downey, who killed a fellow Marine, Private William Santiago, at the Guantanamo Bay Naval Base in Cuba. Santiago compared unfavorably to his fellow Marines, had poor relations with them, and failed to respect the chain of command in attempts at being transferred to another base. An argument evolves between base commander Colonel Nathan Jessup and his officers: while Jessup's executive officer, Lieutenant Colonel Matthew Markinson, advocates that Santiago be transferred immediately, Jessup regards this as akin to surrender and orders Santiago's commanding officer, Lieutenant Kendrick, to train Santiago to become a better Marine.
In 1943 retired Navy Chief Bosun's Mate Steve "Boley" Boleslavski (Edward G. Robinson) helps build the destroyer John Paul Jones, the namesake of the ship he served on in World War I, sunk a quarter century later while saving an aircraft carrier from being torpedoed. When he finds out that an old shipmate, Lieutenant Commander Clark (Regis Toomey), is the ship's new captain, he returns to the Navy and wrangles a berth as the ship's leading chief bosun's mate.
Upon the United States entry into World War I, the first American units to arrive at the front in France are veteran Marine companies, one of which is commanded by captain Flagg, along with his Lieutenants, Moore and Aldrich. Flagg has developed a romantic relationship with the daughter of the local innkeeper, Charmaine, and resumes their relationship after returning from the front. However, he lies to her and tells her he is married when she wants to come with him on his leave to Paris. Replacements arrive and their lack of discipline and knowledge infuriate the Captain. But he is expecting the arrival of a new top sergeant, who he hopes will be able to train them properly. However, when the sergeant arrives, it is Quirt, Captain Flagg's long time rival, a rivalry which quickly re-ignites.
Will Stockdale (Andy Griffith) is a backward, backwoods rube from outside Callville, Georgia who may or may not be smarter than he looks. Accused by Mr. McKinney (Dub Taylor) the head of the draft board of being a draft dodger, it turns out that Stockdale's draft notices have been hidden from him by his father, who doesn't want the boy to leave home and be ridiculed. His father tells Will to be careful going to big cities like Macon and Atlanta. Pa Stockdale says he has been to those cities many years before and he was ridiculed.
Popular crooner Russ Raymond (Dick Powell) abandons his career at its peak and joins the Navy using his real name, Tommy Halstead. However, Dorothy Roberts (Claire Dodd), a reporter, discovers his identity and follows him in the hopes of photographing him and revealing his identity to the world.
Slicker Smith and Herbie Brown (Abbott and Costello) are sidewalk peddlers who hawk neckties out of a suitcase. They are chased by a cop and duck into a movie theater, not realizing that it is now being used as an Army Recruitment Center. Believing that they are signing up for theater prizes, they end up enlisting instead.
United States Air Force Brigadier General Jack D. Ripper (Sterling Hayden) is commander of Burpelson Air Force Base, which houses the Strategic Air Command 843rd Bomb Wing, equipped with B-52 bombers. The 843rd is currently in-flight on airborne alert, a few hours from the Soviet border.
Commander Don Winslow is returned to the Office of Naval Intelligence from his command of his cruiser to investigate strange events on the Pacific island of Tangita, noticeably a ship being torpedoed. He discovers that there is a ring of saboteurs and enemy agents who are trying to destroy ships carrying supplies to the troops stationed in the islands and sabotage the war effort. Though the US Navy is preparing to build a naval base on Tangita, an unknown foreign power secretly has a subterranean submarine base beneath the island with the goal of preventing the American base from being completed'
Lieutenant (j.g.) Max Siegel and other US Navy personnel are stuck in a public relations unit far from the fighting. Lieutenant Commander Clinton T. Nash, their commanding officer and a stockbroker in civilian life, refuses to allow anyone to transfer out. Much of Siegel's time is spent showing war correspondents (like obnoxious Gordon Ripwell) and visiting Congressmen around the island.
In Afghanistan, Taliban leader Ahmad Shah is responsible for killing over twenty United States Marines, as well as villagers and refugees who were aiding American forces. In response to these killings, a United States Navy SEALs unit is ordered to execute a counter-insurgent mission to capture Shah. As part of the mission, a four-man SEAL reconnaissance and surveillance team is tasked with locating Shah. These four SEALs include team leader Michael P. "Murph" Murphy; snipers Marcus Luttrell and Matthew "Axe" Axelson; and communications specialist Danny Dietz.