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...

When Lloyd starts behaving very oddly - flying into walls, sitting on his sister, seeing multiples of everything, eating a dishcloth - his family start to suspect that something may be wrong with his senses.