Mainwaring starts to make his way over the top of the train to retrieve the missing wheel that the Verger is brandishing, and although Jones goes with Mainwaring, he is as usual a complete liability, and Mainwaring has to save him from falling off several times. Once they reach the back of the train, Hodges throws the wheel, and Mainwaring catches it, then he and Jones start to make their way back to the cab.
Mainwaring goes to get the missing wheel from the Verger, with Jones tagging along but causing trouble as usual. They reach the back of the train, where Hodges throws the wheel, which Mainwaring catches. Then they start their way back to the cab.