S40·E47 Episode 5854 (Fri 25th Feb 2011)

Lisa sees Zak is struggling with his anger and asks him to promise not to take the law into his own hands. Convincing him that the police need to deal with it once she has spoken to Belle and Sam, they head back home. Later that morning, the factory girls are incredulous to see Derek walk in and Jai and Nikhil tell him to leave.