 The family receives the visit of Googie, a little friend of Eddie, for one weekend. Everyone is excited about it, until Googie begins to behave rude and cheeky with Grandpa and Herman. First, the kid gives names to Grandpa ("a very tall penguin"), later, he plays pranks to Herman, like moving his chair in the dinning room. By this time, every member of the family has changed his view about Googie, and they expect the weekend passes quickly. Googie goes down with Grandpa to his laboratory, and he shows to the child all his magic potions, like the one which transform a prince in a frog. Googie doesn t believe in the power of the potion, and Grandpa sets up a demonstration for him in the garden. Grandpa claims that he can turns Goggie into a frog. In front of Herman and Eddie, after make a few magic passes, Googie s transformed, not in a frog but in a chimp. Eddie s impressed, except Herman and Grandpa, who are worry about the child. Nevertheless, they don t know that Googie has played a practical joke to Grandpa, and he s hide and laughing about it. Herman and Grandpa are desperately trying to find a cure for Googie. Without success they decided to take the chimp and deliver to his parents. Meanwhile, Googie confesses to Eddie his joke, and despite Eddie gets angry with his friend they go to the movies. Lily begins to worry, because she receives a call from Googie s father, asking to bring the child to his home. But it s to late, because Herman and Grandpa have left the chimp at Googie s house.