Bob's daughter is sick, so Helen volunteers to take his place on the night run, unaware that the Blackhall gang intends to rob the train which carries a valuable gold shipment. Learning of Helen's peril, Bob and Tracy pursue the train by automobile, arriving just as the hijackers are about to explode a charge of dynamite under the rails.
Anna Q. Nilsson
as Helen
Harry F. Millarde
as Bob - an Express Messenger
Helen Lindroth
as Grace - Bob's Wife
Bob Walker
as Haines - a Tramp
Henry Hallam
as Rice - Express Superintendent
James B. Ross
as Blackhall - Leader of the Gang
Arthur Albertson
as Tracy - one of the Gang
