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
Helen
Leo D. Maloney
Tom Walker - Owner of the Hope Mine
George A. Williams
Williams - Owner of the Boss Mine
Rex Downs
Evans - Williams' Foreman
N.Z. Wood
Merkey - President of the Smelter
