Click, clack, clicketty-clack, whoo... ee! Disaster! The fast train to Pebblecombe has broken down. Everyone on the train wants to get to the fair and enjoy a great day out but now they're all stuck on the tracks. It is up to the Little Red Train and Duffy Driver to save the day. So the Little Red Train speeds up and is determined to get all the passengers to the fair on time. As Duffy remarks at the end of the journey, You're the Little Red Express now.