While out practising her flying, Baby Skymoo is relying on the Cloud to catch her if her flying abilities let her down. And the Cloud is happy to help. But this time Baby Skymoo flies in another direction, and the Cloud isn’t there to help. Helpless, Baby Skymoo falls through one of the holes in the Clangers’ planet and lands up in Mother’s garden. She isn’t hurt, but how is she going to get back out of the underground caves and find her mother again? Luckily, the Cloud is summoned to the rescue.