Thomas And Friends: End of Sodor?

(Might Change title). Anyways in this story, it would be based on an small island call sodor where steam engines were still preserved and running. The railway better known as the North Western Railway was run by Sir Topham Hatt or the engines call him, The Fat Controller. Do keep in mind that this is my first time writting a fanfic so pls dont be hard on me and my english isnt that good so i apologise if theres any error in the story. Sodor was basically a magically place, a happy place but that would change soon when a group of malicious scientists released a terrible smoke across the island that would soon change everyone lives, Humans and Engines. In this alternate universe of ttte, nia and rebecca wont be replacing edward or henry, they will be in the story but for another reason....
P.S: I would probably update the story everyday...except for the weekends(Saturday and Sundays). Since i have a bit of spare time since i am done with school for the year.