|Season Three, Episode Ten|
|Air date||Saturday 10th of March, 2012|
|Rescue Mission||On the Run|
Shakedown is the tenth episode of Season 3, and the twenty-eighth episode overall.
Diesel met Percy at the yards in Knapford because the green tank engine has to take a goods train across the main line. The class 08 locomotive said about his warning of the Troublesome Trucks playing tricks, but Percy told him not to worry too much and he can handle trucks. Since he was a little bit worried, Percy was confident that he can get the trucks onto The Main Line. Alice was in swift fashion and she was asked to take a train of slate that originally, Henry was to pull them but came back from British Railways for a long break in Knapford Sheds. She left the factory feeling happy and took the trucks for a ride where she whistled at Rheneas greeting him with a "hello". At Kildane station, Sean met Alice who brought the train of slate for him and they were having a good conversation between the two. As Alice waited for Gordon's express to pass, Percy was having trouble with his train having to stop several times on his journey because of hot axle boxes and attempts to hold back the entire train.
Gordon said his words to Alice about being outside to work and after a few minutes, the Atlantic C1 chuffed off with some clearance to reach the main line. Arriving on Gordon's Hill, the trucks giggled and Percy got up the hill more and more until Alice said to keep going and don't let the trucks beat him. The coupling snapped and the trucks went downhill, knocking their guard off his brake van to prevent breaking and Alice rode faster to catch up to the trucks before a disaster happens next. Trouble is, they plan to crash into Edward who has a passenger train waiting at Wellsworth but an inspector onboard the Atlantic C1 jumped over and stopped the trucks using the brake van's break. The trucks' mission had failed as they blamed themselves after the mayhem. With Percy thanking Alice for stopping his train after Edward said his words, the engines went off in their separate ways.
- Troublesome Trucks
- Daisy (does not speak)
- Rheneas (does not speak)
- James (cameo)
- Bertie (cameo)
- Henry (mentioned)
- This is the first appearance of Alice in the intro of the episode.
- This is the first time that footage of the episode is featured for the end credits' background.
- The brake van had no guard just before WildNorWester said about it during the trucks' chase.