A flying saucer splash lands in Tom Bright's garden pond and out comes a very strange alien. FIzz is a Satnik on Saturn and has come to study Earthlings. Tom and Fizz become friends. Fizz must stay a secret so he pretends to be a pet dog. But will he be able to maintain his disguise?
Fizz, Toppo, Zingle and Gronk go on a crazy supermarket shopping trip and a walk on the wild side at Monkey Magic Adventure Park.
But can friends Tom, Zack and Daisy keep the pets from space out of trouble when one of them is spotted monkeying around? Will the day be cosmic or will everyone go bananas?