It is an action thriller involving skiers trapped on a runaway train speeding down a mountain.
The train continues to gain speed, and one brakeman is lost trying to kick the frozen moisture off one section of brakes.
It is anticipated that the train will derail at a sharp curve once it reaches level ground, and emergency crews stand by there.
With full brake power by the chase engine, the train comes to a halt some 65 feet (20 metres) from the block at the end of the track, and the family members of the passengers rush out of the station to greet their once-imperiled relatives.
The lead locomotive in the movie, D&RGW #3011, is currently on display at the Colorado Railroad Museum in Golden, CO.[citation needed]