The story unfolds with a risky joint operations mission featuring elite operatives from Russian Spetsnaz and American Delta Force, aimed at apprehending General Ivan Radek, a dictator ruling over a “terrorist regime” in Kazakhstan. Fast forward three weeks, James Marshall (Harrison Ford), the President of the United States, addresses the world during a state dinner in Moscow. He declares a firm stance against negotiating with terrorists or remaining passive in the face of dictatorial oppression, alluding to contemporary conflicts resembling the Bosnian and Kosovo Wars. Shortly after his speech, Marshall, along with his Cabinet and advisors, boards Air Force One for their return to the United States, accompanied by his family, his wife First Lady Grace and their daughter Alice.
In a shocking turn, six loyalists of Radek, led by Egor Korshunov and masquerading as a news crew, manage to hijack the plane shortly after takeoff, aided by Gibbs, a mole within the Secret Service. As chaos ensues, agents hurriedly usher a reluctant Marshall to the escape pod, narrowly escaping capture. Meanwhile, the pilots attempt an emergency landing at Ramstein Air Base in Germany, but the hijackers invade the cockpit, shooting the pilots and redirecting the plane towards Kazakhstan. Marshall's escape pod is ultimately revealed to be empty; he cleverly remains on board. It’s worth noting that Marshall is not just an ordinary president; he is also a hero, having served in Vietnam and received the Medal of Honor.
Tension escalates as Korshunov gathers the remaining passengers to demand the release of Radek in exchange for Marshall's family. The situation rapidly deteriorates, with hostages being threatened and the National Security Advisor, Jack Doherty, falling victim first. As Korshunov's men take Grace and Alice hostage, Marshall takes the initiative. After eliminating two of Korshunov's henchmen, the stakes rise when Korshunov murders Press Secretary Melanie Mitchell right in front of Marshall’s terrified family.
Utilizing his skills and resourcefulness, Marshall hides in the avionics bay and initiates a fuel dump from Air Force One. This desperate maneuver forces Korshunov to call for a mid-air refueling, obligating the plane to descend to a level where hostages can parachute out. Marshall then covertly returns to the conference room, leading the passengers to safety. As many manage to escape via parachute, chaos erupts when a henchman discovers their plan. This causes a depressurization that tragically costs several lives as they are violently ejected from the plane, while the ongoing refueling operation ends in an explosion.
Korshunov captures Marshall, along with Major Caldwell, Gibbs, and Chief of Staff Lloyd Shepherd, coercing him into demanding Radek's release from the Russian President Petrov. As Radek is about to be freed, Marshall seizes the moment, freeing himself and confronting Korshunov. In a dramatic confrontation, Marshall wraps a cord around Korshunov's neck, declaring > "Get off my plane!" before deploying the parachute that leads to his demise. With the hijackers defeated, Marshall resumes command of the aircraft and halts the release of Radek, who meets his end while attempting to escape.
As Marshall pilots the plane towards the nearest safe haven, the White House reports that six Kazakh MiG-29s, loyal to Radek, are closing in. With the urgency escalating, a squadron of F-15s intervenes, bravely engaging the MiGs. However, in the battle, Air Force One sustains severe damage and begins to leak fuel, forcing a hasty rescue operation. A Pararescue MC-130 Hercules is dispatched to extract Marshall and his remaining passengers before disaster strikes.
Determined, Marshall insists on rescuing his family first, as well as a wounded Shepherd. Just as hope seems to dwindle with the final engine failing, Gibbs reveals his treachery by killing both the rescuer and Caldwell. In a pulse-pounding moment, Marshall manages to subdue Gibbs before reclaiming security. Ultimately, Air Force One plunges into the Caspian Sea after breaking apart, while Gibbs meets his end in the crash. The nation rejoices as Marshall is rescued, embracing his family and saluting the heroic crew of the Hercules, who earn the proud designation of Air Force One.
