There was a legend around an island where machines had their own personalities and living on an island where machines and humans lived in harmony. But, that legend never came true, and no one ever dared to find the island of Sodor. Until one day, someone came to the island unexpectedly.

The year is 1973. Life is normal on the Island of Sodor. Contracts were being made, and buildings being built. A nuclear power-plant on the Brendam had been built, but after that... all hell broke loose.