Though Hayden Hill likes lots of things - like eating ice-cream, playing chess, and looking after his pet lizard - some things make him a bit, well, cross. And when he can't stop himself from getting crosser and crosser, a rather strange thing happens - his little pet lizard turns into a giant snapping whirlwind of a CROSSODILE! As his out-of-control Crossodile causes destruction everywhere it goes and terrifies his friends, Hayden realises that he can't keep letting it take over. Can he figure out how to understand his anger and tame his Crossodile once and for all?