|This article is about the episode. You may be looking for the Buzz Book or the magazine story.|
Thomas is busy and asks Percy to take the children home from the Vicar's Sunday School. Percy accepts, despite warnings from Harold and Edward later on, but when he leaves with Annie and Clarabel, the weather turns bad and it begins to rain heavily.
Percy battles onward, but has to pass through a flooded field and his fire goes out. The crew chops up floorboards from the brakevan and Harold thoughtfully drops hot drinks for them - unluckily landing on Percy's boiler.
Percy makes it home safely and is thanked by Thomas, the passengers, and the Fat Controller.
- Sir Topham Hatt
- Annie and Clarabel (do not speak)
- The Vicar of Wellsworth (does not speak)
- James (cameo)
- Stephen Hatt (cameo)
- Jeremiah Jobling (cameo)
- Mrs. Kyndley (cameo)
- Tidmouth Hault
- The Watermill
- The Lighthouse
- Hawin Croka
- The Country Line
- Cliff Side Track
- Arlesdale Lake and Mountain Line
- Knapford Harbour (mentioned)
- This episode is based on the story of the same name from The Railway Series book, Percy the Small Engine.
- In the restored version, the shot of Percy arriving at Elsbridge with Annie, Clarabel and the brakevan is replaced by an extended shot of Thomas waiting for Percy.
- In a rare picture, Edward is wearing his exhausted face instead of his concerned face when he talks to Percy at Elsbridge.
- There are noticeable differences in the set between the original and the restored episode when the narrator says "Children love the seaside".
- Deleted scenes from the first season of Thomas on Toby's Old Tramway are used at the beginning of the episode.
- The Coast Guard and The Shrimpers from TUGS appear.
- When the narrator says "the river was rising fast", it is obvious that the water for the river is coming from a pipe.
- When Percy plunges onto the flooded tracks, water appears to come above his firebox. However, in the next shot, the water is below the buffers.
- When Thomas is on Toby's Old Line, Clarabel is facing the wrong way. Then in the next shot, Annie is facing the wrong way.
- Despite the fact that the water only reached Percy's footplate, he has a water line across his boiler when he meets Thomas at the end of the episode.
- In the shot of Percy's driver and fireman, the fence behind then is submerged, however in the close-up of the fireman, the fence is completely above the water. This changes again in the shot of the driver, fireman and guard carrying the wooden planks through the water.
- This episode should have been before Percy Takes the Plunge.
In other languages
|German||Percys Versprechen||Percy's Promise|
|Norwegian||Percys løfte||Percy's Promise|
|Spanish||La Promesa de Percy||The Promise of Percy|
|Welsh||Addewid Pyrsi||Percy's Promise|
|Japanese||パーシーとこうずい||Percy and the Flood|
|Czech||Perchyo slib||Percy's Promise|
|Polish||Obietnica Piotrusia||Percy's Promise|
|Brazilian Portuguese||A Promessa de Percy||The Promise of Percy|
|Turkish||Percy'nin Sözü||Percy's Promise|
|Hungarian||Percy Ígérete||Percy's Promise|
|Dutch||Percy's belofte||Percy's Promise|
|Slovenian||Poldijeva obljuba||Percy's Promise|