Pop Goes The Diesel


Reverend W. Awdry (original)







Air date

July 5th, 2016

Previous episode

The Jinxed Station

Next episode

Diesel's Devious Deed

Pop Goes The Diesel is the eighth episode of Season 1 of Thomas: The Trainz Adventures 


Duck the Great Western engine works very hard on the Island of Sodor and everything goes smoothly when he is around. He can keep the coaches quiet, the trucks behaving, and the passengers happy. He is also very proud of his Great Western heritage and talks endlessly about it, which irritates the larger engines who quickly grow tired of hearing about "the Great Western way".

One day a visitor arrives in the shed. The Fat Controller introduces the new engine as Diesel, stating that he is going to be given a trial and charges Duck with showing him around and teaching him what to do. Diesel introduces himself before heaping compliments on Gordon, James, and Henry, which quickly win them around to the newcomer. Duck, however, takes a dislike to Diesel's oily nature and shows him to the yard.

There it becomes apparent that Duck's dislike of Diesel is mutual as Duck orders Diesel to refer to the Fat Controller as "Sir Topham Hatt", before Diesel smugly tells Duck that he does not have to be taught what to do. As a Diesel, he already knows everything and that Diesels will always improve a yard. Duck is not very happy about this and orders Diesel to arrange the trucks while he leaves to take Gordon's coaches to the station.

Diesel, eager for the chance to show off, quickly gets to work. However, he attempts to move the wrong trucks; some really old ones which have stiff joints and brakes. When Diesel cannot move them, he tries getting very forceful with them. Duck arrives, and realises what is happening, but decides to let events play out. Diesel gets so frustrated with the trucks that he accidentally overturns some when their brakes snap. Diesel still cannot move the remaining trucks and is forced to give up.

Duck finally comes forward carrying some other trucks and Diesel asks Duck why he did not tell him about the others. Duck simply reminds Diesel that he was supposed to instantly improve the yard. Duck leaves happily, while Diesel fumes.

Diesel is later forced to help clean up the mess, a duty that he hates especially as the trucks have started teasing and singing at him. When the clean-up is over, Diesel, now unhappy with the trucks and with Duck, storms off back to the shed.




  • DarthWill3 makes his debut as Diesel in this episode.
  • Mallardfan62 takes over the role of Henry in this episode as well as TheBuriedTruck as Gordon.
  • This episode was released exactly one year after The Jinxed Station was released.

References to the Official Show

  • This episode and the two following are based on the Duck and Diesel trilogy from Season 2.


Thomas The Trainz Adventures Episode 8 Pop Goes the Diesel

Thomas The Trainz Adventures Episode 8 Pop Goes the Diesel