FBI agent Gretchen Blair is on a flight to Washington D.C. when the man seated beside her makes an unusual offer. He explains that the plane they're on is about to be hijacked| and promises to pay her seventy-five million dollars if she can get him safely back on the ground. When a gang of professional thieves takes control of the plane| she realizes he isn't joking. Soon Gretchen finds herself caught in the middle of an elaborate mid-air heist| fighting to save the passengers while the thieves tear the plane apart| searching for the stolen loot hidden somewhere on board.