When a Chinese rebel murders Chon's estranged father and escapes to England, Chon and Roy make their way to London with revenge on their minds.

A psychotic spaceman takes over a deep-space observatory manned by a scientist, his wife, and their teenage daughter.

A convict and his gang seize a space station in 2064, with plans to annihilate Earth's population in order to start anew with an entirely new society.

In a lawless futuristic society, a rebel must prevent a tandem of renegades from destroying Los Angeles. An ex-star pilot is forced to stop a mad criminal and his gang after they've hi-jacked a huge space freighter with the intent of crashing it into Los Angeles destroying what is left of civilization. Time is running out.

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.