After being hit on the head by his mother and told to fend for himself, Larry the polar bear floats from Baffin Bay to New Jersey where he gets a job as a lifeguard.

After little Mildred Frobisher has a sleepover at the hotel where she lives with her parents and Larry the polar bear, Larry decides that he too would like to host a sleepover for his friends.

Irving and Muktuk, polar bears at the zoo in Bayone, New Jersey, are the natural suspects when someone steals a shipment of imported muffins, but they decide to prove that they are not bad bears by finding the real thief.