Season 4 Episode
- Season 4 The Cult Hotel
- Season 4 Hunting for the Ship of Gold
- Season 4 America's Gun Factory
- Season 4 Nazi Secrets in the Empire State
- Season 4 The Vermont Doomsday Gun
- Season 4 Idaho's Atomic Ghost Town
- Season 4 The Lair of the Mothman
- Season 4 Secrets of the Olympia Brewery
- Season 4 America's Hidden Training Camp
Mysteries of the Abandoned: Hidden America - Season 4 Episode 5 The Vermont Doomsday Gun
7.00 42 minutes A research facility spawns new technology with earth-shattering implications and a coastal haven for African Americans changes the nation.
