A bereaved woman and her daughter are flying home from Berlin to America. At 30,000 feet, the child vanishes, and nobody will admit she was ever on the plane.
Communist radicals hijack Air Force One with the U.S. President and his family on board. The Vice President negotiates from Washington D.C., while the President, a veteran, fights to rescue the hostages on board.
An FBI agent takes on a plane full of deadly venomous snakes, deliberately released to kill a witness being flown from Honolulu to Los Angeles to testify against a mob boss.