A convicted murderer is escorted by marshals on a regular flight from Phoenix to Dallas. Shortly after takeoff, two of his aides, traveling as ordinary passengers, take control and free him. He demands $20 million in bonds upon landing. And a sick passenger, bad weather or mechanical problems won't stop him.

When a plane carrying a pair of top secret military robots crashes on a deserted Pacific island, a team of Navy seals must find them and turn them off as soon as possible for the longer they are activated, the smarter they become.