Lloyd meets a young stink bug called Chuck and sees an opportunity for a harmless prank to get back at Berry with a tiny little stink - however, the plan backfires as Chuck gets a taste for bigger stinks and ends up stinking Lloyd's family out of their home.

Queen Libby is at her wits' end - food is going missing from the colony and the larvae are hungry, but there's some sort of pest at work and the ants just can't track it down. Against her better judgement, Libby accepts Lloyd's offer to find the pest...