Remaining Cast:

Keywords All:
Enemy, River, Steep Waterfall, Rendezvous, Blackmail, Motorcycle, Canyon, Menace, Serial, Prisoner, Trapdoor, Fragmentation, 1940s, Fall From Height, Mineral, Experiment, Episodic Structure, Chasm, Observation, Hideout, Invention, Metal Detector, Mine, Incinerator, Deception, Rocketry Experimentation, Truck Driver, Airplane, Dynamite, Evidence, Railroad Track, Mystery Villain, Packing, Propeller, Villain, Investigator, Extortion, Secret Headquarters, Foreign Agent, Inventor, Information, Treachery, Train, Truck, Trap, Deceit, Badlands, Robot, B Movie, Weapon, Violence, Rescue, Telephone, Interrogation, Car Chase, Plane Crash, Voice Over Narration, Kidnapping, Sound Recording, Stake, Testing, Flashback, Fall Off Cliff, Brother Sister Relationship, Suspect, Ranch, Horse, Daredevil, Witness, Parachute, Short Wave Radio, Disk, Explosive, Pilot, Archive Footage, Lab Experiment, Safety, Desert, Eavesdropping, Fire Escape, Search, Swimming, Henchman, Spy, Cliff, Waterfall, Duplicity, Remote Control, Shack, Radio, Secret Weapon, Fight, Helicopter, Doctor, Pit, Tnt, Low Budget Film, Masked Villain, Train Chasing, Brake Failure, Pursuit, Detective, California, Dual Role, Post War, Expose, Sabotage, Telephone Call, Furnace, Slang, Signal, Assistant, Hit By Car, Stock Footage, UFO, Damsel In Distress, Kidnapper, USA, Peril, Laboratory, Cliffhanger, Clue, Conference, Airport, Co Pilot, Ambush, Suspicion, Warning, Threat, Black Out, Held At Gunpoint, Explosion, Los Angeles California, Wheel, Strategy, Character Name In Title