Hammy is a very special hamster. He's probably the brainiest hamster in the whole world and Bethany can't wait to take him on holiday with her. Hammy is very excited too — it will be his first trip to the seaside and he can't wait to dig lots of hamster tunnels deep down in the sand! But it's far too easy to lose a little hamster on a very big beach and Bethany isn't the only person who wants to find Hammy.