Terry goes undercover, hoping to arrest a supplier of illegally imported goods, but gets caught up in a pub brawl between rival football fans in which a fellow officer, Sgt. Doug Wright, is stabbed. Lewis's inside knowledge is called upon when another spate of gang violence breaks out and the new leader of the Skens appears to be settling old scores. Sam and Kezia investigate an assault victim discovered by Tony and Lewis. (thetvdb.com)