Britt Allcroft Company PLC.

It's so busy on the island of Sodor that Sir Topham Hatt needs to bring in some new engines to keep the railway running smoothly. There is Spencer, the fastest express engine the island has ever seen. Meet Emily, the sleek green engine with the beautiful brass dome. And new friend Arthur, whose spotless record gets ruined when Thomas plays a trick on him. Join Thomas and his new friends for train loads of discovery and fun.