A lot has changed in 20 years.
A shape-shifting extraterrestrial, bent on the world's destruction, is hunted by two überagents, whose job it is to track Earth-dwelling aliens and keep them in line.
Austin boogies back to 1975 and teams up with a secret agent-disco singer to rescue his abducted father in the third Powers romp. The opening credits feature cameos by a number of celebrities.
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