Only Special Forces agent Jack Slater and his computer programming sidekick can save the world from Armageddon when the supercomputer masterminding America's nuclear initiatives goes berserk with power and decides to launch the missiles.

Police officer Jack Wild discovers that the well-known international terrorist Hans Becker is on a train, carrying a wealthy business man and his girlfriend. Without a second to loose Jack hires a helicopter to drop him down onto the train to try and stop whatever scheme Becker is planning.