Wheetle just wants to help. He's a wagon after all, and that's what he's meant to do. So when his friends ask him to carry slimy things, fragile things, heavy things, even squiggly-wiggly things, he always says yes. But one morning he wakes up with a wobbly wheel. Oh no! he thinks, but decides he can still help his friends. When he hears a loud POP, he suddenly finds he is the one who needs help. Will his friends come through for him, this time?