Percy's Promise

Percy's Promise is the second episode of the third season and the fifty-fourth episode of the series. It first aired on Shining Time Station in the episode Washout in 1991.

Plot
Thomas is busy and asks Percy to take the children home from Sunday School. Percy accepts, but when he leaves the weather turns bad and it begins raining.

Percy battles onward, but has to pass through a flooded field and his fire goes out. The crew chop 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 lauded by Thomas, the passengers and the Fat Controller.

Characters

 * Thomas
 * Edward
 * Percy
 * Harold
 * 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)

Locations

 * Tidmouth Hault
 * Elsbridge
 * Dryaw
 * The Watermill
 * Arlesburgh
 * The Lighthouse
 * Knapford Harbour (mentioned)

Errors

 * At the beginning of the episode, Thomas is on Toby's old tramway.
 * When the narrator says "the river was rising fast", it is obvious that the water for the river was 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.
 * There was no idea why Percy used a brakevan for the guard instead of Clarabel.
 * In a deleted picture, Percy's roof is lifted.
 * This episode should've come before Percy Takes the Plunge, as the events of this episode were mentioned in the other.
 * When the driver and fireman bring the floorboards to Percy's cab, they drag them through the water, making them wet, which wouldn't help Percy's fire burn better.
 * When Thomas was on Toby's Old Line, Clarabel was facing the wrong way. Then in the next shot, Annie was 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.
 * When Percy says "Ugh!", his face is tilted slightly.
 * Thomas leaves Annie and Clarabel with Percy because he's busy with another train that evening, and yet, he's shown pulling different coaches at the end. Shouldn't Thomas take Annie and Clarabel back, since they're his personal coaches, and left Percy with the other coaches if they were both taking passenger trains anyway?
 * In the shots of Percy in the floodwaters, there is a small speck of dirt on the side of his saddletank.