K9 becomes confused about his memory loss when an alien "bounty hunter" arrives and teams up with an evil Department inspector called Drake. Ahab, the Bounty Hunter, claims there is a price on K9’s head for murdering a galactic peace delegate in the 50th century.

London is out of control; riots erupt due to irrational fear. The focus of the paranoia is based in an old junkyard where a strange alien consciousness is at work. K9 discovers the emotion of fear for himself in his bid to thwart the unknown.