当恐怖分子在商业飞行中生产炸弹时，飞机上的乘客必须打架，将飞机保持在空中，所有乘客都活着：当飞机低于800英尺时，炸弹将被引爆。

  When terrorists plant a bomb on a commercial flight, the passengers aboard the plane must fight to keep the plane in the air and all the passengers alive: the bomb is rigged to detonate whenever the plane dips below 800 feet.