Larry has finally snapped under Snaptrap's ruthless authority and forms his own evil agency, dubbed "G.L.O.O.M."! Much to Dudley and Kitty's chagrin, it turns out Larry is pretty good at being bad! / Petropolis' worst smelling villain, The Stink Bug, has returned to make life odorous for T.U.F.F. Keswick has a cold and Dudley's super sensitive snout is rendering him helpless. T.U.F.F. needs a plan and fast, before the Stink Bug turns Petropolis into a cesspool of stench!