The Simpsons go to a zoo, finding an ape family mirroring their appearances. Homer starts teasing the apes with peanuts and the whole family tells him to stop it. The annoyed monkeys throw mud at Homer's face as Bart says, "Right on dudes!" As the Simpsons drive home, Homer is angry with the apes, declaring this the last time he's going to the zoo. Marge tells him to calm down, but he is still angry. An ape sound is heard, Then Mom and Dad look back and Homer screams to see the Ape Bart lookalike in the real Bart's clothes. It turns out the real Bart is in the ape pen and the ape family is feeding him.