Percy's New Whistle

"Call that a whistle? Just listen to this."

- Bert showing off his horn

"Percy's New Whistle" is an eighth season episode.

Plot
Arry and Bert tease Percy for his weak whistle, but Percy gets revenge by scaring the two diesels by whistling behind them. Percy is happy with this prank and plays tricks on Thomas and Bertie. Thomas makes Percy promise to stop, but when Percy can't help himself and whistles, Trevor knocks a log down the hill, causing it to turn into a giant snowball that collides with Percy. Percy learns his lesson, and puts his whistle to good use to warn Thomas of a snowdrift ahead.

Featured Characters

 * Thomas
 * Percy
 * 'Arry and Bert
 * Bertie
 * Sir Topham Hatt
 * Trevor
 * Henry (cameo)
 * James (cameo)
 * Toby (cameo)
 * Salty (cameo)
 * Emily (cameo)

Goofs

 * Arry and Bert start to shake in fright before Percy blasts his whistle at them.
 * The quarry is mistakenly referred to as the smelter yard.
 * When Trevor backs into the logs his back wheels aren't moving.
 * It was said that one log fell, but it was actually two.
 * When the two logs roll away, the ground moves.
 * Percy could have simply ran from the snowball.
 * When Thomas brings the Breakdown Train to rescue Percy, he crashes into a large mound of snow with his buffers.
 * When Percy saves Thomas from running into the snowdrift Thomas' mouth is covered in snow, but in the next scene it disappears.
 * Salty has Diesel's second season horn sound.
 * Contrary to this episode's name, Percy does not get a new whistle at all.