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
Black Widow
No Name on the Bullet
The MacKintosh Man
The Apology
Cornered
Maniac
The Truth About Emanuel
T-Men
Conflict
The Glass Key
The Time Shifters
Sleep, My Love
Pickup on South Street
Side Street
Each Dawn I Die
Man in the Shadow
Nightfall
Hollow Triumph
The Night Stalker
Cannibal! The Musical