Edward, Gordon and Henry

Edward, Gordon and Henry is a season 1 episode. It starts out with Henry still in the tunnel. Gordon was just passing when he burst a safety valve. Edward was called to help, but was not strong enough to pull the express. Henry was then asked to help, so they let him out of his tunnel and it gave him the chance to redeem himself. The trio are now good friends. In The Railway Series stories, Henry was painted blue, but eventually reverted to green in later books.