Sweetie Pie escapes the confines of her hamster cage--and a series of insufferable owners--to find a new home in the wild.

Sam Waters is desperate to have a pet. But his parents say that first, Sam must prove he's responsible. So he takes an after-school job in a pet store called Little Shop of Hamsters. To his horror, Sam soon finds that cute, little hamsters can become very UNCUTE monsters. Suddenly, Sam isn't fighting for a pet--he's fighting to survive! Could the souvenir he got in HorrorLand have anything to do with this?

Stanley's first grade class is getting a class pet, and they all can't wait to learn all about animal life when they get a hamster named Cottonball. But when Cottonball goes missing, Stanley and his best friend, Marco, set out to catch her using engineering concepts.

Taking a turn caring for the class pet hamster, Marion is devastated when the hamster goes missing and she receives an anonymous letter in her locker with clues leading to a mysterious scavenger hunt.