The Little Blue Engine loves nothing more than puffing along the track pulling important loads. One day at a junction, he meets a Big Silver Engine, who calls him a "slow coach". The Little Blue Engine feels insulted and goes as fast as he can to prove the Big Silver Engine wrong. However, he comes off the tracks from going too fast. Once he was back on the tracks, he continues his journey carefully to the Docks, this time ignoring the Big Silver Engine's teasing. He is praised by the Dock Manager for being really useful and he toots happily with pride.