Kate and Rick arrange a series of sting operations to catch a corrupt builder; Jim's loyalty is tested when he is forced to investigate a mate over an alleged robbery.

Matt is hired to investigate doping in the greyhound racing industry. Rick and Kate risk losing their reputations and their biggest client when they are accused of wrecking a school formal. Jim's focus on the family business takes its toll on Claire and Lily's relationship with Marcus taking a surprising turn.