Watch Airport '77

Airport 77 is a 1977 suspense film about a luxury airplane that crashes into the Atlantic after it is hijacked. It is the third in the highly successful Airport series. A luxury 747 passenger plane carrying artwork by wealthy businessman Philip Stephens (James Stewart) and over 100 passengers, is hijacked by a gang of thieves. Leading the criminals is the co-pilot Bob Chambers (Robert Foxworth), who wants to get his hands on the multimillion-dollar artwork collection. The hijackers first knock out pilot Captain Don Gallagher (Jack Lemon) and pump sleeping gas into the passenger cabin. Chambers' plan is to land the plane with unconscious passengers on a deserted island and make off with the valuable artwork.

The plan is altered when the plane barely misses an oil platform, which causes Chambers to make a sharp turn. When the plane's engine catches fire, he is forced to douse the flames with the fire extinguisher. The alarm goes off, awakening the unconscious passengers, who begin to scream in panic. After the engines stall, the plane crashes into the ocean. Two of the hijackers are killed upon impact, and several passengers are injured. The airplane begins to sink beneath the ocean. The Coast Guard is deployed but looking in the wrong area. Airline official and former pilot Joe Petroni (George Kennedy) attempts to locate the ship's signal. Gallagher and Martin Wallace (Christopher Lee), who is also a certified diver, attempt to make it to the surface to activate a beacon; Martin dies in the process, but Gallagher is able to activate the signal beacon.

As a rescue ship nears the airplane, the plane continues to sink. A cargo door bursts open, and water sweeps through the plane. Chambers is pinned under some furniture and drowns. Inflated balloons used by the recovery ship make the airplane float to the top of the ocean. At the surface, Captain Gallagher and the remaining passengers are rescued.