Mickey and the nephews are vacationing at the beach when a seal takes over their bathtub. The seal causes Mickey all sorts of problems. When Mickey is kidnapped by a bank robber named Big Duke, (who looks exactly like Black Pete), the seal brings the police to save him.; Mickey falls asleep during a chess match with Goofy and dreams he is a knight who has to defeat a dragon to win the hand of the fair Princess Minnie.; Mickey has a new suit. Minnie doesn't notice, but complains that Mickey hasn't noticed her new dress.; A burglar gets tripped up by all the toys Morty and Ferdie have left lying on the floor.; On a hot day, Mickey tells Goofy that sitting in a bathtub will cool him off. Later Mickey visits Goofy and finds him sitting in his bathtub--without any water.