When their father's soufflé is found destroyed, Arthur and D.W. both explain their sides of the story: Arthur claims that D.W ran too fast into the kitchen and bumped into the table, while D.W claims that Arthur pushed her into the table. Their mother figures out that the truth was a combination of the two stories, and they make amends by helping their father make a new soufflé. Muffy hangs out with Francine's sister, Catherine, because Francine is not mature enough for Muffy's favorite new magazine, meant for teenagers. Catherine's friends ridicule Muffy because of her misguided attempts at acting like a teen, and Catherine convinces Muffy that it's okay to still be a younger kid and to enjoy what she can do while she still can.