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This article is about the episode. You may be looking for the book, the Norwegian DVD, the US VHS/DVD, the UK DVD or the Swedish DVD.

“I get dirty! I need washdowns, Gordon only does it to feel important!"
"I am important, I'm an express engine."
"You're a pouty puffer, Percy."
"No I'm not!”
―Percy, Gordon and James

Percy's Chocolate Crunch is the eighteenth episode of the sixth series.


Percy is frequently working the dirty jobs involving trucks and longs for a washdown as much as any other engine. Unfortunately, when he goes to the washdown, the Fat Controller informs the engines that they can only have one wash per day because there is a water shortage and that "usefulness comes before cleanliness". This irritates Percy as he thinks that Gordon only needs a washdown to feel important. Gordon points out that he is important as he pulls the express and James teases Percy, who does not see the funny side before going back to work again.

Percy returns to work at the coaling plant, determined not to get dirty. But the trucks are up to their old tricks and pull Percy right under the coal hopper, with coal pouring on top of him. On their way to Callan, the trucks tease Percy by singing a rude song to him. Percy hates it when they make fun of him, so he angrily tells them to stop as he puffs along the line towards Callan.

Once at Callan, Percy shunts the coal trucks into a siding, right alongside Harold who is unloading medical supplies. Harold takes off, spreading cinders and ashes all over Percy, who demands for a washdown. His driver, however, reminds him of what The Fat Controller said earlier about usefulness coming before cleanliness. After Percy demands a clean job, his driver suggests taking vans of sugar to the chocolate factory, which Percy agrees to do, feeling happy.

Percy (thinking that he finally has a clean job) is unaware that a patch of oil had been caused by a leakage from a truck in the siding at the chocolate factory. Upon going down a hill near the factory, his brakes are applied, but Percy slips on the oily rails, crashes through the wall right into the chocolate factory, goes through the factory and emerges out from the other end, covered in chocolate having never been more dirty than he is now.

When Duck brings Percy back to Tidmouth Sheds, Thomas, James and Henry tease him about his accident saying he looks "good enough to eat", but Gordon disapproves. The Fat Controller knows how much work Percy had done despite his problems and the accident; and as he proved that usefulness comes before cleanliness, Percy is rewarded with a washdown and a new coat of paint which makes Percy very happy indeed.




  • This episode was originally titled Puff Puff Pastry.
  • When Percy comes to a stop once he has crashed through the other side of the factory, CGI smoke is used until real smoke appears.
  • Alec Baldwin gives Harold a Cockney accent in this episode.
  • In Days Out with Thomas events in the US, Percy tells the story of this episode with Christopher Ragland voicing Percy since his introduction in 2014. He tells the story word-for-word, but it is altered to a first-person dub.
  • The shot of Percy sliding down the hill shouting "Oh no!" is shot in a 4:3 aspect ratio, as opposed to the 16:9 aspect ratio the rest of the episode was shot in.
  • A behind the scenes picture shows that Mavis was the engine pushing the Breakdown Train in the yard when Duck brought Percy back to the sheds.
  • The logo of Mr. Jolly's Chocolate Factory shown in a picture of Percy after his accident is now in possession of Twitter user ThomasTankMerch.
  • Percy's original clenched face from the first series may have been used in the shot of Percy crashing into Mr. Jolly's Chocolate Factory but is offscreen.
  • When Percy has his accident, the chocolate covering him looks fresh. In promotional images and rare pictures, the chocolate on him looks dry.
  • In real life a water shortage would not have happened on a island as they are surrounded by water.
  • The LT Warehouse from TUGS can be seen when Percy is loading trucks at the Docks. The aforementioned warehouse also appeared in the fifth series episode, Cranky Bugs.
  • This episode aired on 9th October 2002, 18 years after Thomas and Gordon, the first episode of first series and the first episode of the show in general to air on television, was aired.
  • Percy's accident may have been inspired by a NJ Transit train crashing into a spaghetti factory in 1982.


  • At the beginning, Oliver has Duck's whistle sound.
  • Harold's unhappy expression is visible behind his happy expression when he says "Hello, Percy!"
  • The narrator says "Back at the sheds, everyone thought it was very funny," but Gordon does not seem amused in either his expression or dialogue.
  • Percy's sugar vans and brake van disappear in the close-up of him sliding down the hill.
  • In the scene where the chocolate splats out of the factory's windows, Percy's train was not seen entering the factory.
  • In the close-up of the sugar vans, a worm is seen under them.
  • In the first close-up of Percy covered in chocolate over the flatbed, the chocolate looks fresh. However, in the next close-up, it looks dry, the same as it was when Percy pulls out of the factory.
  • When Thomas and Duck pass at Tidmouth Beach, Clarabel is facing the wrong way. Duck also looks worried in that scene.
  • In many scenes in this episode, Percy's lamp irons are crooked.
  • When Gordon says "I am important. I'm an express engine," two workmen's heads are on backwards, one of them has sticky tack under his feet and his buffers are crooked.
  • The roofs of Percy's chocolate vans (excepted for one) and his brake van, are either lifted or crooked.
  • When Percy's driver applies the brakes, his shakes a little.
  • When Percy crashes into the factory the sound effect is slightly off.
  • The narrator said Harold took off blowing cinders and ashes everywhere. But it appears, they only scattered on Percy, and not anywhere else of that matter.
  • When Gordon says "Disgraceful" his buffers and lamp irons are crooked, and has stains around his smoke box and buffer beams.


  • Percy: [after all his literally dirty work] From now on, I am only doing work where I won't get dirty!


(Percy returns to the sheds, covered in chocolate)
  • Narrator: Back at the sheds, everyone thought it was very funny.
  • Thomas: You look good enough to eat!
  • James: UK dub: Pudding Percy! / US dub: Bon Bon Percy!
  • Henry: Choc ice on wheels!
  • Gordon: Disgraceful!
  • The Fat Controller: Ahem! You have had a trying day, Percy.
  • Percy: (from beneath the chocolate) Yes, sir.
  • The Fat Controller: But you showed us all that usefulness does come before cleanliness. So, you shall have your washdown....
  • Percy: Oh, sir!
  • The Fat Controller: ...and a new coat of paint!
  • Narrator: Percy just beamed!


In Other Languages

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Language Title
Chinese Mandarin 培西的巧克力危机
Czech Percyho Čokoládová Krize
Danish Chokomotivet Percy
Dutch De Chocola Trein
Hungarian Édes Percy
Italian La Locomotiva e il Cioccolato
Japanese パーシーのチョコクランチ
Korean 더러운 건 싫어
Norwegian Percys Sjokoladekræsj
Polish Czekoladowa Przekąska Piotrka
Romanian Accidentul cu Ciocolată al lui Percy
Russian Перси и его шоколадная корочка
Slovenian Čokoladni Poldi
Swedish Percys Chokladdopp
Welsh Persi Blasus Iawn

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