Runaway Sidney is an upcoming episode.
Sidney's brakes are broken, and he needs to go to the Dieselworks to get a new set of brakes. Edward pulls up next to him, and Sidney tries to tell Edward that his brakes are broken, but, being the forgetful diesel he is, he can't remember what's wrong with him. Edward does figure out that something is wrong with Sidney's brakes, and decides to take him to the Dieselworks.
As Edward sets off for the Dieselworks, Sidney follows behind, but, since he is a forgetful diesel, he forgets why he is following Edward. Soon, Edward and Sidney reach the top of Gordon's Hill. Sidney tries to brake properly, but since his brakes are broken and he is not coupled to Edward, he rolls down the hill backwards and is unable to stop. Edward finds out that Sidney has rolled down the hill backwards and chases after him.
Sidney races faster and faster, and since he is forgetful, he thinks that Edward had pushed him down, even though Edward hadn't. Suddenly, the points are set to the express track, where only express engines were allowed. Sidney suddenly changes tracks and wonders what track he is on. Gordon sees Sidney up ahead and is worried he is going to crash. Thankfully, the signalman in a nearby signal box switches the points, sending Gordon and his express coaches onto a siding as Sidney passes by. Gordon is thankful he didn't crash into Sidney, but is cross that he is going to be late with his express. He sees Edward, who asks him if he's seen Sidney. Gordon tells Edward he nearly crashed into Sidney, and now he is stuck in the siding and going to be late with his express. Edward knows that he won't be able to catch up with Sidney, but he also knows Gordon can't be late with his express, so he helps Gordon out of the siding so he can get back onto the express track. Gordon thanks Edward and tells him he owes him one for helping him. Edward tells Gordon he's glad to be of service, and continues to chase after Sidney.
Sidney continues to roll backwards across the island. He passes by Winston, who wonders what just went by him. Edward catches up to Winston, and asks him if he's seen a blue diesel roll by him. Winston tells him he has. Edward then asks Winston if he'd like to help him chase after Sidney. Winston says he will, and joins Edward.
As Sidney continues rolling backwards, he sees Winston, and wonders what he is doing on the tracks, because cars ordinarily travel on the road.
- Sir. Topham Hatt
- Some Children
- James (cameo)
- Terence (cameo)
- Lady Hatt (cameo)
- The Small Boy (cameo)
- Brighet Hatt's Friends (cameo)
Messages from me
- Could you carry on the plot and when Sidney stops, he lands in a goose pond.