Toffee Apple the hamster has a good life in a school, watching TV with the children at treat time, and with plenty to eat. But he is lonely, and he longs for adventure.
When six-year-old Maddy rescues a mouse and smuggles him into school, she has no idea what adventures lie ahead for the cool, streetwise mouse and his new hamster friend, and what amazing thing she will discover about herself.
The outside world is full of surprises for Toffee Apple. He makes animal friends, but discovers other animals are dangerous. Then he meets another hamster, and his life changes forever with another wonderful surprise.