Runaway!, also known as The Runaway Train, is a 1973 film made for ABC television directed by David Lowell Rich. It is an action thriller involving skiers trapped on a runaway train speeding down a mountain. The film was produced by Universal.
The Denver & Rio Grande Western's Ski Train equipment and Rio Grande locomotives were utilized in the filming. The Ski Train served the Winter Park, Colorado ski resort area west of Denver, Colorado. Rio Grande locomotives were re-lettered for fictional Sierra Pacific.
After departing the train station at a ski facility, a passenger train begins descending a long downhill grade, only to discover that the brakes don't work, apparently frozen while at the mountain station. 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. The train survives the curve and continues on toward the terminal station, where the tracks abruptly end.