Tidy Thomas is a magazine story.
Thomas and his coaches are at the wash-down being scrubbed and polished. The Fat Controller insists on having clean and tidy trains, but Thomas reminds him that sometimes the passengers do not help by leaving things in his carriages. A cleaner showed the Fat Controller a box full of lost property. The Fat Controller took the box to the lost property office himself. He placed the items on the full shelf which came crashing down. Thomas saw what had happened and had an idea.
The next morning, Thomas was loaded with all the lost property and he pulled a train called "The Lost Property Special" which stopped at all the stations on Sodor and gave passengers a chance to claim their lost goods. By the end of the week, nearly everything was returned to their owners.
Meanwhile, the Fat Controller was pleased to have a clean lost property office. He went back to his own office, but suddenly the wind blew his door open and his papers flew everywhere. Now his office needs to be tidied too.
- At one point, Annie and Clarabel are called wagons.