Everyone knows that there's no such thing as head lice... after all, an insect can't live on a Biggo without getting squashed or swatted! However, when Lloyd meets a real head louse called Titchy, he's torn between proving her existence or returning her to Biggo's head.

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.