Brandon, a surveyor, dreams of building a railway to the west. He sets off with his son, Davy, to survey a route. They discover a new pass which will shave 200 miles off the expected distance, but they are set upon by a party of Cheyenne. One of them, a white renegade with only two fingers on his right hand, kills Brandon and scalps him. Davy is all alone now.

George O'Brien
as Davy Brandon

Madge Bellamy
as Miriam Marsh

Charles Edward Bull
as Abraham Lincoln

Cyril Chadwick
as Jesson

Will Walling
as Thomas Marsh

Francis Powers
as Sergeant Slattery

J. Farrell MacDonald
as Corporal Casey

Jim Welch
as Private Mackay

George Waggner
as Buffalo Bill

Fred Kohler
as Bauman