Daisy's cat food keeps disappearing. Kayla calls the Pet Club into action. They grab their pets and start to find clues. Will they solve the cat food mystery.

Lucy's pet rat, Ajax, is her lucky charm. When Ajax is around, Lucy is a great tumbler. Without him, her flips flops. Will Ajex help Lucy during her big gymnastic meet?

Andy is having a Halloween party for the Pet Club. However, Andy doesn't have a costume for his fish, Nibbles. What kind of costume will work for a fish?

Lucy is throwing Ajax, her rat, a birthday party. She remembers balloons, games, and cake. But something is missing. Will the party be ruined?