Gerald the elephant, who "knows parties," gives his best friend, Piggie, advice for getting ready after Piggie receives her very first party invitation.
A trip to the laundromat leads to a momentous occasion when Trixie, too young to speak words, realizes that something important is missing and struggles to explain the problem to her father.
Contains three cartoons based on books by Mo Willems, including the title story in which a pigeon becomes jealous when duckling wants a cookie and gets one.
Gerald, a cautious and pessimistic elephant, believes he is allergic to his best friend, the optimistic and occasionally reckless Piggie, and is concerned that he will need to stay away from his pal forever.