After escaping a Puget Sound institution, "Stepfather" Gene Clifford alters his appearance with plastic surgery and takes on another new identity: Keith Grant. Moving to Deer View, California, Keith falls for a divorced school principal, arousing the suspicions of her wheelchair-bound, computer-savvy son.

An employee of a secret company operation becomes the victim of the company's special weapons project. He is transformed into a robotic killing machine that, because of his programming must destroy anything that comes near him.

A documentary on Scanner Cop and Scanner Cop II: The Showdown

When other Scanners in the Los Angeles area are left drained of life, Sam is forced back into action in a desperate attempt to stop Volkin, who is determined to become the most powerful - and ruthless - of his kind.