Melanie's surprise sleepover for Diana's birthday promises to hold more than one surprise when Kathleen finds some marijuana. Hoping to bring his two best friends together, Yick persuades Luke to invite Arthur to a poker game. Joey decides to join ""the nerds"" for poker - anything to get away from Wheels, who's driving him crazy. Yankou must pull an all-nighter in order to get an assignment done on time. (thetvdb.com)