Main page

This article is about 'the episode'. You may be looking for 'the book, the Norwegian DVD, the US DVD, The UK DVD, or the Swedish DVD'.
"Clickety-clack! Don't look back! Dirty Percy's on our track!"
"Be quiet!
— The Troublesome Trucks teasing Percy
"Yuck! I've never been this dirty!"
— Percy after crashing in the chocolate factory

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


More often than not, Percy gets the dirty jobs involving trucks and longs for a washdown as much as any engine. However, when he goes to the washdown, Percy and the other engines are informed by the Fat Controller that, due to a water shortage, all engines can only have one wash per day. This annoys Percy as he thinks that Gordon only needs a washdown to feel important. Gordon points that he is important as he pulls the express.

Percy goes back to work, determined not to get dirty. However, that is easier said than done as the trucks give Percy a hard time; they pull him right under the coal hopper. On their way to Callan, the trucks tease Percy by calling him "Dirty Percy". 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, but his driver reminds him that usefulness comes before cleanliness, but Percy wants a clean job more than anything. The driver suggests taking vans of sugar to the chocolate factory, so Percy takes the vans of sugar, feeling happy.

Percy now thinks that he finally has a clean job, but he does not reckon with a patch of oil in the siding leading to the chocolate factory. Percy slips on the oily rails and crashes through the wall right into the chocolate factory and out the other end, covered in sticky chocolate.

When Duck brings Percy back to Tidmouth Sheds, Thomas, James, and Henry tease him saying how chocolatey he is, but Gordon disapproves. The Fat Controller knows how much work Percy had done despite his problems and, as he proved that usefulness comes before cleanliness, Percy is to be rewarded with a washdown and a new coat of paint.




  • This episode was originally to be 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.
  • This story's plot has some similarities to a magazine story with the same name.
  • Alec Baldwin gives Harold a Cockney styled accent in one scene.


  • At the beginning, Clarabel is facing the wrong way and Oliver has Duck's whistle sound.
  • Look closely at Harold, his expression was quickly repainted to look happy.
  • In the US narration, just before the trucks push Percy under the coal hopper, they are called freight cars and then trucks in the same sentence.


  • Narrator: Back at the sheds, everyone thought it was very funny.
  • Thomas: You look good enough to eat!
  • James: Pudding Percy! (Bon Bon Percy! - US)
  • Henry: Choc ice on wheels!
  • Gordon: Disgraceful!


In Other Languages

Language Name Meaning
Norwegian Percys Sjokoladekræsj Percy's Chocolate Crash
Czech Percyho Čokoládová Krize Percy's Chocolate Crisis
Welsh Persi Blasus Iawn Very Tasty Percy
Swedish Percys Chokladdopp Percy's Chocolate Dip
Dutch De Chocola Trein The Chocolate Train
Slovenian Čokoladni Poldi Chocolate Percy
Japanese パーシーのチョコクランチ Percy's Chocolate Crunch
Hungarian Édes Percy Sweet Percy
Italian La Locomotiva e il Cioccolato The Engine and the Chocolate
Russian Перси и его шоколадная корочка Percy and his Chocolate Crust
Chinese 培西的巧克力危机 Percy's Chocolate Crisis
Korean 더러운 건 싫어 I Hate a Dirty Thing
Romanian Accidentul cu Ciocolată al lui Percy Percy's Accident with Chocolate
Slovak Percy a Chrumkavá Čokoláda Percy and Cruchy Chocolate
Polish Czekoladowa Przekąska Piotrka Percy's Chocolate Snack
Danish Chokomotivet Percy Chocolate Percy
Thai เพอร์ซีถูกเคลือบช๊อคโกแลต Percy Was Coated Chocolates

Home Media Releases


DVD Packs


DVD Packs


DVD Packs



  • Percy's Chocolate Crash

DVD Boxsets