Based on the story of the same name from The Three Railway Engines.

Henry has been stuck in the tunnel for a long time now, and wishes he hadn't been so silly. But one day, Gordon goes too fast and bursts a safety valve right in front of the tunnel. Edward is the only engine available, but he can't push the heavy train without Henry's help, so Henry is let out.

Based on the story of the same name from Thomas the Tank Engine.

Thomas is fed up with shunting coaches in the yard, so Edward agrees to swap jobs the next day. However, Edward's train consists of trucks, which love to play tricks, especially on an engine not used to them, like Thomas.