Thomas & Friends S07E25 - Trusty Rusty

Rusty hits a bump on an old bridge, so he alerts the other engines about it. Duncan doesn't trust him, especially when he needs more coal for the journey home. The nearest coal bunker was on the other side of the bridge, but Skarloey warns him not to cross it. Duncan doesn't listen, but runs out of coal and stops on the bridge. The bridge starts to collapse with the extra weight.