The only survivor of the Nostromo, Ripley is discovered in deep sleep half a century later by a salvage ship. When she is taken back to Earth, she learns that a human colony was founded on the same planet where the aliens were first found. After contact with the colony is lost, she finds herself sent back to the planet along with a team of warriors bent on destroying the alien menace forever, and saving any survivors -- if any remain.

Raven Shaddock and his gang of merciless biker friends kidnap rock singer Ellen Aim. Ellen's former lover, soldier-for-hire Tom Cody, happens to be passing through town on a visit. In an attempt to save his star act, Ellen's manager hires Tom to rescue her. Along with a former soldier, they battle through dangerous cityscapes, determined to get Ellen back.