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.

Featured characters

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

Trivia

 * Stock footage from "Home at Last" is used.

Goofs

 * Rusty appears to be blowing steam when Skarloey first meets him.
 * When Skarloey meets Rusty, he is on (viewer perspective) the left side of Rusty. Further down the line, they seem to have switched sides.
 * When Duncan "rocks 'n' rolls" in his first scene the track is tilted.
 * When Duncan comes off the track he has his happy face on.
 * Duncan isn't put back on the rails properly, even though a - clearly visible - pole underneath Duncan was used to help him derail.
 * When Rusty says "Oh! I forgot about them!" his right eye pokes in.
 * In the close-up of Duncan's wheels as 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!