A crooked mine owner attempts to hijack his rival's shipment of ore, but Helen foils his plot by jumping onto the engine and pulling the throttle wide open, eventually exposing the unscrupulous villain.
Helen Holmes
as Helen
Leo D. Maloney
as Tom Walker - Owner of the Hope Mine
George A. Williams
as Williams - Owner of the Boss Mine
Rex Downs
as Evans - Williams' Foreman
N.Z. Wood
as Merkey - President of the Smelter
