U.S. Title: Rosie's Carnival Special
Air date: September 3rd, 2008
Rosie and Emily are tasked with pulling a train for a funfair together, but Rosie wants to pull it alone. When Rosie reaches Brendam Docks she tries to pull the train, but the tension caused by Emily coupled up at the other end snaps a coupling and Rosie leaves with only half the train. More trucks come loose during the journey, causing problems for Bertie, Stepney, and Emily. When caught by the Fat Controller, Rosie fetches Rocky to repair the damage and she and Emily pull the train back together and deliver it to the fairgrounds.
Tropes featured in the episode:
- The Bus Came Back: Stepney makes his first appearance here since "Trusty Rusty", back in Series 7.
- A Day in the Limelight: Rosie gets her only leading role here, following her attempts to pull the funfair train on her own.
- I Work Alone: At first, Rosie wants to pull the funfair train on her own instead of pulling it together with Emily but agrees to work with Emily after her attempts end in disaster.
- Rail-Car Separation: Rosie and Emily pull at different ends of the funfair train and split it in half before they set off on their journey. The rest of Rosie's trucks' couplings are weakened by this, causing a truck of coconuts to break away and crash into a level crossing's gates, a truck of pink sugar to break away and crash into Stepney, and a flatbed of Ferris Wheel seats to break away and crash into Emily.
- Rule of Three: Three of Rosie's trucks come loose and cause trouble for Bertie, Stepney, and Emily.
- A Tragedy of Impulsiveness: Rosie is so excited that she is completely unaware of the trucks coming loose, leading to several mishaps for Bertie, Stepney, and Emily.
