RB151 "Bridge Out!"

Bill and Henry are checking fire lanes deep in the forest and pretty high up in the mountains. Henry takes a walk out on an old, unused railroad bridge for a bird’s eye view of the Shady Valley. Henry sees that a fallen tree has damaged the bridge. He decides to get off when the bridge collapses dropping him hundreds of feet into the valley. Things go from bad to worse when a train whistle announces that a train is headed for the collapsed bridge.