Helen, overhearing Tony and his accomplices plotting to derail the pay train and steal its money, is thrown into a cattle car; grabbing a revolver which one of the men has dropped, she shoots the wire controlling the semaphore arm, which then swings up and flashes the danger flag, thus averting disaster in the nick of time.
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Production companies:
Character: Helen
Character: O'Malley - Section Foreman
Character: Tony - a Mexican Section Hand
Character: Velasquez
Character: Orturo