Arthur and Muffy have their birthday parties on the same day and neither can postpone. While everyone is frozen with indecision over whose party to attend, Arthur and Francine then work together to merge the two parties into one everyone can enjoy. Feeling sorry for Francine never getting a good part in the class play, the whole class vouches for her to star as Thomas Edison in the next play. However, they regret their decision when Francine tries to take charge and acts very bossy, leading to heated disputes between her and the rest of the cast.