Sodor is in the grip of winter. Farmer McColl needs an engine to haul some heavy goods for him, and when Gordon ends up being assigned to the task, of which he is most boastful about, Henry is sad he wasn't given a chance. The engines, not pleased with Gordon's pompousness, tell him that Henry could do just as good a job, giving him the title: ‘Big Strong Henry'. But Henry is concerned. Will he be able to live up to such a title?