Thomas & Friends Season 12 Episode 14

Don't Go Back

While working at the Quarry, Diesel challenges Thomas to race backwards around the Quarry, but causes Mavis, Arry and Bert to bump off the rails. Henry arrives to collect his trucks, which Thomas and Diesel were supposed to have loaded with Quarry stone. They eventually finish the job, then have one more race, forwards, as they arrive together at the finishing point.