A motorcycle cop is killed by a man on a "nighthawk." Upon further investigation, Hunter and McCall discover the killer may have been motivated by a dispute over a western shootout game at a bar.
Son of a mobster, Detective Sergeant Rick Hunter finds it difficult to keep a partner. The Captain assigns Hunter a new partner, but Hunter has another maverick in mind, Sergeant Dee Dee McCall. Hunter and McCall team up to catch a serial killer.