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Springtime for Diesel is the first episode of the twenty-first season.


Diesel is always bumping into the other engines and finds it very funny. It is his way of saying hello, but none of the other engines find it funny at all.

One day at Arlesburgh, Diesel bumps into Daisy while she is getting ready for refueling. Daisy crossly tells Diesel that the bumping could be bad for her swerves, but Diesel takes no notice.

Out on the branch line, Daisy's springs give way and she ends up slanting to one side. She carries on to the next station to let her passengers off before heading to the Dieselworks. Meanwhile, Diesel bumps into Thomas before noticing Daisy pass by on Judy and Jerome's flatbed. Thomas wonders what happened to Daisy, but Diesel thinks Thomas is about to blame him for Daisy's accident and hurries away.

At the Dieselworks, the workers cannot find the required parts to fix Daisy, and the rumours soon spread that Daisy might have to be scrapped. Mavis tells Arry and Bert, and they tell Diesel, but he again thinks that they are blaming him. Later at a level crossing, Paxton also tries to tell Diesel about the rumours, but this time Diesel has had enough.

That night, Diesel comes to see Daisy at the Dieselworks.Thinking she is asleep, he apologises for bumping into her and tells her that he only treats the other engines badly because they treat him the same way.

The following morning, Percy arrives with new spare parts from the Mainland, including a spare spring for Daisy, and the workers fixed her up in no time. As she leaves for work, she spots Diesel. She tells him that if he wants the other engines to be friends with him, he has to change his ways.

So that's just what Diesel does. Whenever he sees Daisy and Ryan on the Arlesburgh branch line, he wishes them a good morning and no longer bumps into them.




UK and AUS


  • Joseph May as Thomas
  • Christopher Ragland as Percy
  • Kerry Shale as Diesel and 'Arry
  • Tracy-Ann Oberman as Daisy
  • William Hope as Bert
  • Keith Wickham as Den and some Passengers
  • Steven Kynman as Ryan, Dart and Paxton
  • Bob Golding as Sidney
  • Teresa Gallagher as Mavis, Judy and some Passengers
  • Tim Whitnall as Jerome


  • The title may be a reference to Springtime for Hitler, a fictional musical in Mel Brooks' 1968 film The Producers, his 2001 Broadway Musical adaptation of the original film, and Susan Stroman's 2005 remake of the former film.
  • This is the first episode for several things:


  • When Trevor crosses over the level crossing, he has Stanley's whistle sound, and Jem Cole is not steering him.
  • In the overhead shots of Daisy on the flatbed in the Dieselworks, the flatbed's shadow is not rendered properly as it looks like it has been cut off at the back.

In Other Languages

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Language Title
Japanese ディーゼルのはんせい

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