Thomas & The Birthday Mail

On the way to delivering some birthday mail to Alice, who lives at High Farm, Thomas meets Rosie, a young tank engine, who absolutely idolizes him. Thomas becomes very angry when Rosie tries to follow him down the line to High Farm, and so attempts to lose her. But when Thomas ends up in a tremendous landslide, Rosie of course soon catches up with him. Will Thomas accept the young lass' help?