An undercover operation for Fenton threatens to expose a secret that could ruin Inspector Briggs. Susie takes matters into her own hands when Tommy is bullied by the other officers, and Max finally gets his witness in the murder investigation, now he just needs her to talk. At the Sapphire club, Lenny taunts Chris, and Gina struggles with her growing feelings for him.

Will a chance meeting with a bullied schoolboy give Tommy the push he needs to stand up to Chief Inspector Coulson? A desperate Fenton enlists help from an unlikely party as he goes on a mission to track down Lenny Powell. Gina's world is rocked when the murderer reveals himself, and she has to make a life-or-death decision to protect Rebecca.