April has found it hard adjusting to life back in England after leaving Bear, a polar bear that she befriended on Bear Island, behind in the Arctic. She feels different at her school and her dad has a new girlfriend, which isn’t helping with her sense of feeling isolated even though she is surrounded by people. When she receives an email from her friend, Tor, telling her that a polar bear has been shot at the location that she last saw Bear, she instantly decides that there’s only one thing to do… go and rescue her friend!