Steam Roller is the twelfth episode ever made in Season 4.
Sir Handel has recently had new wheels fitted and he claims that he is better than the others. Skarloey, attempting to bring Sir Handel down to size, tells him of an anti-railway steamroller named George, whom Sir Handel vows to sort out. Sir Handel is later bringing a special train home when he meets George on the alongside road, making it near impossible for him to pass. After the steamroller refuses to move aside, the two have a shouting match which ends when George crashes into Sir Handel's train. The next day, a fence is put and George is taken away. Sir Handel claims credit, but loses his pride when some boys start laughing at him with his race with the roller.
- Thomas has James' whistle sound.