The rest of The Addams Family are too busy to play with Pugsley, but an organ-grinder's stray chimp climbs in his bedroom window. Pugsley thinks Gorgo sent him. Pugsley leaves to find Uncle Fester in the play room and the chimp puts on one of his shirts. Fester is training himself in conjuration and causes a large explosion, sending Pugsley through a secret door and trapping him in a hidden room. When the chimp walks in, Fester believes his conjuration has transformed Pugsley.