Thomas is a little blue tank engine who acts as the station pilot and takes pleasure in surprising Gordon. Gordon, furious, wonders how to pay Thomas out. Next day, Thomas is late and forgets to get uncoupled after shunting Gordon's coaches. Gordon takes Thomas on a wild high-speed journey across Sodor. Thomas later resolves to never tease Gordon again.
One Morning Henry is ill and Thomas is the only one available to take his train. Thomas, impatient, leaves too early and only stops when a signalman points out he is missing his coaches. Thomas goes back and is able to take the train that time, but is teased by the others for a long time afterwards.
Thomas wants to see the world, but no one takes notice until Edward offers him to pull his train the next day. Thomas is excited but careless and the trucks push him down Gordon's Hill. Thomas manages to stop in time and the Fat Director tells him to start shunting trucks at Wellsworth. One Day, Thomas is shunting when some trucks push James across the Island and into a field. Thomas comes to his rescue with the Breakdown Train and is rewarded with two coaches and his own branch line.
