Thread:Transformersprimefan/@comment-31314272-20181130211701/@comment-31314272-20181205175209

Narrator: Derek is a diesel who works at the China Clay Pits on Edward's branch line. When he first came to Sodor, he has teething troubles which means he's new and it cause him problems. In his case, it's his cooling system which makes him overheat and break down especially on hills. Because of that, he makes frequent visits to the Dieselworks for repairs.