Ever since he lost his wife and son in a devastating fire, Detective Jack Murphy (Mark Hamill) has wandered around life in a fog. But he is forced to face his terrifying memories when his partner Gus is killed in a mysterious slaying. Killed in a manner too brutal to be human, too clever to be animal, the only clues to Gus's death are a vagabond golden retriever and Dr. Grace Hudson (Lisa Wilcox), the beautiful scientist who seeks him out. Dr. Hudson tells Jack that Einstein, the dog, is actually one half of a super-secret government experiment. With an IQ of 140, the dog was designed as a tracker for a genetically engineered killing machine known as the Outsider. Jack and Grace must stop the Outsider from killing again while preventing Lem Johnson (Stephen Macht), a pitbull, and the NSA from terminating the experiment... killing everyone who has knowledge of its existence. But how do you stop a creature genetically predestined for murder?