Aggiungi una trama nella tua linguaThe crew of the Pioneer Zephyr diesel train has only a few hours to deliver an iron lung to an injured man at the Boulder Dam construction site.The crew of the Pioneer Zephyr diesel train has only a few hours to deliver an iron lung to an injured man at the Boulder Dam construction site.The crew of the Pioneer Zephyr diesel train has only a few hours to deliver an iron lung to an injured man at the Boulder Dam construction site.