Thread:Shrekyardigans/@comment-25498563-20161225121534/@comment-25498563-20170514120010

Okay. It's called "Mechanoid Mayhem".

Summary: "Jimmy invents a "J-Cog", which is designed to look like a Transformer's T-Cog but has the same capabilities. He tries it on James and it proves successful. However, Diesel, in an attempt to impress 'Arry and Bert with a new move he made up, gets his hands on one of Jimmy's J-Cogs and it turns him into a destructive robo-train known as a "Mechanoid". Now it is up to Jimmy, his friends, Thomas, Percy, James, Philip and Rosie to save the island before Diesel's power grows too strong."