Explosion at Donner Pass

In a race against nature and treachery, Darby Buckingham leads a determined crew as they attempt to navigate the treacherous Sierras while laying down railroad tracks. Battling fierce elements and internal conflicts within the crew, they confront daunting challenges at the perilous Donner Pass. As tensions rise, the group faces an even greater threat: a deadly wave of sabotage that puts their mission and lives at risk.