On the moon, the moonlings are all intelligent children who answer to the Grand Baby, their ruler. However, the Grand Baby is on his deathbed, so a shooting star is set to land on Earth to summon the next Grand Baby. The shooting star lands in a family home and causes household items to gain superpowers. Two moonlings come to earth to help the kids put everything together and find out who the next Grand Baby will be. Despite their efforts, they're stopped by an interfering neighbor with the surname Dump.
The plant nursery run by Bill and his sister is under threat from a difficult...