Thomas and the Great Discovery is an exciting children's mystery. At the end of a long day of work, Thomas discovers an old track that has not been used in a long time. As the track becomes more and more overgrown, Thomas is sure that he is lost, until he pulls into an empty town that has been abandoned for over 50 years. Thomas and a new really useful engine named Stanley are asked to fix up the old town, but first they need to learn to cooperate.
