 Principal Andrew Simpson (Peter Flanigan) bans pranks on muck-up day and suspends the boys when they run through the school wearing balaclavas and spraying silly string.During a school rafting trip, Kyle and Justin cause their raft to capsize during a prank, throwing them and Zeke, Bridget Parker (Eloise Mignon) and Libby Kennedy (Michala Banas) into the river.Zeke goes missing and Kyle is traumatised by the accident.