sodor fallout au: im not a useful engine anymore

in my sodor fallout au after July 10th 1973 br ( British railways) wanted the island of Sodor blocked off even known sir Topham Hat said there wasn't anything radiation it was set up to looks like a nuclear explosion when the power plant blew up they didn't listen and they were going to block off sodor on July the 20th and the 19 after Topham Hatt told his engines goodbye and left thomas left sodor during the night before they blocked off sodor (should i do a sequel to this video with a boy cover of let it go?