Gordon & The Old Mine is a Potential Plotlines episode.
- Gordon was chosen to take visitors to a cave, but Gordon gets upset when he has to work with Duck. Later, Gordon puffs down an old line that leads to a mine. But, when the roof collapes, Gordon gets stuck in there. But, soon he finds some freight cars. So, he push the cars through the mine and he finds a way out. Then, he and Duck delivers the cars to the transfer yards.
- The Fat Controller
- Mr Percival (mentioned)
- Stanley (cameo)
- Bertie (mentioned)
- The Transfer Yards
- The Old Mine
- Stock footage from "Gordon Takes A Shortcut" and "Gordon & The Engineer" is used.
- First and only appearence of the old mine.
- Stick figures of Gordon's driver and fireman can be seen in Gordon's cab.
- Gordon: I'm going to be stuck in here forever.