 Fitz assists the police and the new commanding officer, the younger and better educated but less experienced Lt. Monroe Macey, Lt. Fry s replacement, in tracking a serial killer of three women when a police officer becomes a victim, and suspicion points to the officer s partner, Pete Renaldi, whom holds a clue to the killer s identity which prompts Tyler to go undercover to romance Renaldi to look for clues. Meanwhile on Fitz home front, Judith becomes nervous when she thinks that she might be pregnant again while Michael wants a car for himself in the aftermath of turning 18.