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.

Malcolm and Gena's oldest son, who is also called Lloyd, comes home for a visit - Big Lloyd's habit of eating all the crumbs is bad enough, but when his visit threatens to become permanent, Little Lloyd is faced with the prospect of having to share his room!

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.