Yo Jojo is surprised when a cricket-like bug jumps out on him. He and the other Piplings play jumping games with it until suddenly it disappears. But even though they can't see it, they can still hear it. They all play a game in which they hide and jump out, making a noise, to surprise each other - then the jumpybug jumps out and surprises them all, making Yo Jojo lose his Pipling Pipes in the process! After the children arrive, the jumpybug disappears again and they try to find it by making its noise. Eventually they realise that all the noise they're making might actually be drowning out the sound of the jumpybug and keeping it hidden - so they try being quiet instead. Sure enough, they hear their jumpybug - and follow the noise to find him - and Yo Jojo finds his Pipling Pipes too!.