Ike Porter relinquishes his cushy job as a police bureaucrat and enters the police academy to become a street-beat patrolman after the murder of an old friend. Both Ike and his partner Tony are promoted to detectives. They investigate a murder case much to displeasure of their boss.

Sandy, Ike's visiting niece, unwittingly becomes witness to a mugging. Ike and Tony must protect her from the assailant.