Mr. Strong and the Holiday Express is a story from the 1983 Annual.
Plot[]
Mr. Strong is taking a holiday via train, and he is not alone. a bunch of kids are joining him on the train too. The train ride is wonderful but it was sadly cut short when a large chunk of a bridge that held up the train tracks is shown to have eroded away. Without something to hold up the train tracks, the train will collapse and derail from the bridge. Luckily, Mr. Strong there to hold the bridge up so the train can continue chugging along. There's no holiday for a hero like Mr. Strong, but he doesn't mind.