A faulty computer causes a passenger space shuttle to head straight for the sun, and man-with-a-past, Ted Striker must save the day and get the shuttle back on track – again – all the while trying to patch up his relationship with Elaine.

Ten years after a band of mercenaries first battled a vicious alien, the invisible creature from another world has returned to Earth — and this time, it’s drawn to the gang-ruled and ravaged city of Los Angeles. When it starts murdering drug dealers, detective-lieutenant Mike Harrigan and his police force set out to capture the creature, ignoring warnings from a mysterious government agent to stay away.

Colonel Reynolds and his group of government scientists continue their work on re-animating the dead for military use. His son Curt uses a stolen security pass to sneak in with his thrill-seeking girlfriend Julie, with shocking, deadly results!