When Thomas the Tank Engine first arrived on the Island of Sodor, he had a lot to learn. This special shows you how he became the Fat Controller's number one engine.When Thomas the Tank Engine first arrived on the Island of Sodor, he had a lot to learn. This special shows you how he became the Fat Controller's number one engine.When Thomas the Tank Engine first arrived on the Island of Sodor, he had a lot to learn. This special shows you how he became the Fat Controller's number one engine.