On the moon, the moonlings are all intelligent children and all answer to the Grand Baby, the ruler of them all. But the Grand Baby is dying, so a shooting star is set to Earth to call upon the next Grand Baby. The shooting star lands in a family home causing various pieces of household items to inherit super powers. Two moonlings come to earth to help the kids put all items together and discover who the next Grand Baby is. The only thing standing in there way is a pesky interfering neighbour with the surname Dump.