- “It's a mystery. I love a mystery! Imagine us as special agents!”
- ― Paxton
The Case of the Puzzling Parts is the twenty-third episode of the twenty-second series.
Plot
Sidney has a flatbed with some parts that are needed, but he forgets why the parts are needed. Paxton decides that he and Sidney should be special agents to find out what they are for, they found out from Thomas that the parts are for a diesel engine. While they are searching for more clues to find, Sidney starts to have a few problems with himself and after Paxton points out that he has a wonky horn, a broken lamp, a faulty buffer and coughing up black smoke, both diesels realise that the parts are for Sidney himself.
Characters
- Thomas
- Whiff
- Dart
- Sidney
- Paxton
- Skarloey
- Reg
- Diesel (does not speak; fantasy)
- Scruff (cameo)
- Luke (cameo)
- Owen (cameo)
Locations
- Vicarstown Dieselworks
- Wellsworth Scrap Yard
- Road and Rail Runby and Road Bridge
- Tower Windmill
- Whiff's Waste Dump
- Blue Mountain Quarry
Voice Cast
UK and AUS
- John Hasler as Thomas
- Keith Wickham as Whiff and Skarloey
- Steven Kynman as Paxton and Dart
- Bob Golding as Sidney
- Tim Whitnall as Reg
US and CAN
- Joseph May as Thomas
- William Hope as Whiff
- Keith Wickham as Skarloey
- Steven Kynman as Paxton and Dart
- Bob Golding as Sidney
- Tim Whitnall as Reg
Trivia
- This episode marks Whiff, Scruff, Dart and Luke's only appearances in the twenty-second series as well as Sidney and Skarloey's only speaking roles in the twenty-second series.
- Paxton breaks the fourth wall once again in this episode, as does Sidney.
Goofs
- When Thomas backs away from Sidney, he makes no puffing sounds and Paxton's engine does not make a sound when he reverses alongside Sidney.
- Throughout the episode, Sidney's wheels move slower than the speed he is travelling at.
- Nick Jr's captions misspell Sidney as Sydney throughout the episode.
In Other Languages
| Language | Title |
|---|---|
| Brazilian Portuguese | O Caso das Peças Intrigantes |
| Czech | Případ tajemných součástek |
| Danish | Sagen om de mystiske dele |
| Dutch | De Zaak van de Onbekende Onderdelen |
| Finnish | Varoosien arvoitus |
| German | Auf Spurensuche |
| Hebrew | תעלומת החלפים המסתוריים |
| Hungarian | A fura részek ügye |
| Japanese | ぶひんのなぞをさぐれ! |
| Norwegian | Saken om de savnede delene |
| Polish | Sprawa Tajemniczych Części |
| Russian | Загадочное дело |
| Spanish | El Caso de las Piezas Misteriosas (LA) El Caso de las Piezas Desconcertantes (SPN) |
| Swedish | Mysteriet med de förbryllande delarna |
Home Media Releases
UK/AUS
| #01 Number One Engine | #10 Outback Thomas | #19 Cyclone Thomas |
| #02 Forever and Ever | #11 School of Duck | #20 Kangaroo Christmas |
| #03 Confusion Without Delay | #12 Tiger Trouble | #21 Thomas and the Dragon |
| #04 Trusty Trunky | #13 Seeing Is Believing | #22 Rosie is Red |
| #05 What Rebecca Does | #14 Apology Impossible | #23 The Case of the Puzzling Parts |
| #06 Thomas Goes to Bollywood | #15 The Water Wheel | #24 Banjo and the Bushfire |
| #07 Thomas in the Wild | #16 Samson and the Fireworks | #25 Counting on Nia |
| #08 Thomas and the Monkey Palace | #17 Runaway Truck | #26 Hunt the Truck |
| #09 An Engine of Many Colours | #18 Thomas' Animal Ark | |