Scanners III: The Takeover (also known as Scanner Force in UK) is a 1992 science fiction horror film, the second sequel to the film Scanners. It was directed by Christian Duguay. The film received mixed reviews, and is the least successful Scanners film. This sequel has a different set of characters from either of the preceding films in the series.

Plot

Helena Monet (Liliana Komorowska), a Scanner, is troubled by the painful side-effects of her telepathic powers. This drives her to try her adoptive father's untested, experimental drug called Eph-3 (pronounced "F3"), a variant of the drug Ephemerol prescribed to Scanners to help attenuate the myriad voices (representing the thoughts of people around them) which their natural, inborn telepathy otherwise forces them to hear. Her use of Eph-3 causes her to lose her sense of moral conscience, making her into a megalomaniac. She kills her father (Colin Fox) and takes over his pharmaceutical company. Her long-lost adopted brother Alex, also a Scanner, is alerted to her dangerous behavior and attempts to stop her.