Perkins and Sim arrange a raid on a warehouse suspected of being involved in the trade of stolen car parts, but Hunter junior's lack of urgency with obtaining a warrant leads the team to lose their prime suspect. However, further investigation leads the team to uncover a second location where parts are being traded. Meanwhile, De Costa and Nadir investigate a domestic violence case with a twist, when an interview with the supposed abuser reveals some very interesting information about the victim. Kapoor and Powell deal with an incident of 'happy slapping', involving a number of schoolchildren from the nearby Harvey Wallace school, who push a businessman from his bike into a canal.
