Rock 'n' Roll

"Smelly old diesel, clever me!"

- Duncan

Rock 'n' Roll is the tenth episode of the fourth season.

Plot
Rusty is concerned Duncan will derail at a dodgy section of line near Cros-ny-Cuirn due to his "rock 'n' roll", but Duncan refuses to take advice from a "smelly diesel", and matters are only made worse when James backs Duncan up the next day and tells him of the time he supposedly sent Diesel packing. Duncan is full of admiration, and starts to "rock 'n' roll", causing him to derail. Rusty is furious, but helps Duncan after remembering the passengers, and the two sort out their differences.

Characters

 * James
 * Skarloey
 * Rusty
 * Duncan
 * Thomas (cameo)
 * Gordon (cameo)
 * Percy (cameo)
 * Duck (cameo)
 * Sir Handel (cameo)
 * Peter Sam (cameo)
 * Duke (cameo)
 * Jeremiah Jobling (cameo)
 * Diesel (mentioned)

Locations

 * Crovan's Gate

Trivia

 * This episode is based on the story of the same name from The Railway Series book, The Little Old Engine.

Goofs

 * When Skarloey meets Rusty, he is on (viewer perspective) the left side of Rusty. Further down the line, they seem to have switched tracks. Thus putting Skarloey on Rusty's right.
 * When Duncan "rocks 'n' rolls" in his first scene, the track is tilted.
 * When Duncan comes off the track, he has his happy face mask on.
 * The pole used to derail Duncan is clearly visible.
 * When Rusty says "Oh! I forgot about them!", his right eye pokes in.
 * In the close-up of Duncan's wheels when he is put back on the rails, no people are visible, Duncan's rear wheel remains derailed, and you can see the shadow of the hand putting him down!
 * James has Duck's whistle sound when he leaves Crovan's Gate.