200 years after the incident on Florina "Fury" 161, Lieutenant Ellen Ripley is by scientists who are interested in the alien queen that was living in her. They want to use the queen to breed a new kind of military force. But then something goes wrong; the queen lays more eggs then the easter bunny and soon aliens are lurking everywhere on the U.S.M. Auriga and the U.S.M. Betty. It's up to Ripley, Call, DiStephano and Christie to wipe all of them out, and return safe back to earth.