Skyjacked
During a routine flight to Minneapolis, a passenger (Susan Dey) aboard Global Airways Flight 502, a Boeing 707, discovers a bomb threat written on the mirror of one of the first-class bathrooms. A second threat is soon found left on a napkin in a galley. Captain Hank O'Hara (Charlton Heston) takes the cryptic threats seriously and follows the instructions -- "Bomb on plane divert to Anchorage Alaska. No Joke, No Tricks. Death"—by changing course for Alaska. To avoid an explosive decompression if a bomb goes off, he flies at lower altitude, increasing fuel consumption.
The weather at Anchorage is so poor, a United States Air Force ground-controlled approach specialist (Claude Akins) is called in. His radar shows a small aircraft with radio failure that is approaching the same runway, but Flight 502 has too little fuel to go around. O'Hara sees the other aircraft at the last moment and manages to avoid a collision and land safely.
On the ground, O'Hara learns the hijacker is one of his passengers, Sgt. Jerome K. Weber (James Brolin), a Vietnam veteran driven insane by war trauma. Whether he has a bomb or not, Weber is certainly armed with guns and grenades. He threatens to detonate a grenade in his hand if anyone attempts to interfere with his plans.
After a majority of economy-class passengers successfully escape by an emergency slide, the remaining passengers and the three economy-class stewardesses are allowed to leave. Weber keeps the remaining crew as hostages, including a stewardess (Yvette Mimieux) with whom O'Hara had been in a relationship, and all of the first-class passengers, including a U.S. Senator (Walter Pidgeon) and a woman (Mariette Hartley) who has gone into labor due to the crisis. A federal agent tries to slip on board, but is caught by Weber and becomes another hostage. Weber demands to be flown to Moscow, where he intends to defect to the Soviet Union.
Although the Soviets deny clearance into their airspace, Weber insists on being flown straight ahead to Moscow, becoming increasingly agitated. Soviet fighters intercept the airliner, but are eventually convinced it is civilian once O'Hara lowers the landing gear and flaps to a full landing configuration. The Soviets then allow the hijacked airliner to land at Moscow, ordering it to stop short of the terminal as armed soldiers surround the plane.
All passengers and the remaining crew are finally released, leaving O'Hara and Weber as the last ones on board. Weber, who had nursed fantasies of becoming a hero to the Soviets, is jubilant to have seemingly achieved his dream. He gloats to O'Hara that no bomb was in his possession. But then he realizes the Soviet forces surrounding the aircraft are preparing to attack him, not welcome him.
Weber prepares to open fire on the Soviets, and when O'Hara tries to intervene, Weber shoots him. Both men stagger down the airstair to the landing strip, where Weber is shot and killed by Soviet forces. O'Hara survives, and looks up to the sky, with a smile of relief, spotting another aircraft that has just taken off.
suspenseful