The Puppet Masters is a 1994 science fiction film, adapted by Ted Elliott, Terry Rossio and David S. Goyer from Robert A. Heinlein's 1951 novel of the same title, in which a trio of American government agents attempts to thwart a covert invasion of Earth by mind-controlling alien parasites. The film was directed by Stuart Orme and stars Donald Sutherland, Eric Thal, Keith David, Julie Warner and Andrew Robinson.

Plot

When a flying saucer reportedly lands in rural Iowa, The Old Man (who runs a secret branch of the CIA), decides to investigate. He goes in person, accompanied by agents Sam (who is the son of The Old Man) and Jarvis, as well as Dr. Mary Sefton, a NASA specialist in alien biology. They find that aliens have indeed landed and are planning to use their mind-control powers to take over the Earth. The aliens are slug-like creatures, and they are attaching themselves to people's backs, taking control of their victims' nervous systems, and manipulating those people as puppets.