Mysteries of the Abandoned: Hidden America - Season 4
1 - The Cult Hotel
Air Date: April 23, 2025
Get chills in a bleak communications hub that housed a California cult and then eye a secret US Navy arsenal in Florida.
2 - Hunting for the Ship of Gold
Air Date: April 30, 2025
A crew searches for a shipwreck loaded with gold and sets off a long legal dispute and a lavish complex in the Catskills attracts many of America's great comics.
3 - America's Gun Factory
Air Date: May 7, 2025
A company town produces weapons that transform the Wild West and a building complex revolutionizes communications on this world and beyond.
4 - Nazi Secrets in the Empire State
Air Date: May 14, 2025
Visit strange structures in New York where Nazis helped launch the US Space Race and then see a New Orleans amusement park where joy turned to despair.
5 - The Vermont Doomsday Gun
Air Date: May 21, 2025
A research facility spawns new technology with earth-shattering implications and a coastal haven for African Americans changes the nation.
6 - Idaho's Atomic Ghost Town
Air Date: July 9, 2025
The remains of Idaho's nuclear industry mark a new era of American history; a distillery in rural Kentucky revolutionizes liquor; a New England settlement prospers despite prejudice; subterranean chambers produce many of the nation's monuments.
7 - The Lair of the Mothman
Air Date: July 17, 2025
A desert facility trains a nuclear strike force; a church becomes a sanctuary from racial violence; an old military building spawns a creature that haunts a small town.
8 - Secrets of the Olympia Brewery
Air Date: July 30, 2025
A brewery in the Pacific Northwest sustains prospectors during the Gold Rush; a Wyoming mining settlement descends into lawlessness; a murder in a small Mississippi town sparks a revolution.
9 - America's Hidden Training Camp
Air Date: August 6, 2025
A Military Base trains soldiers in modern warfare to help defeat the Nazis; a suburban basement becomes a major cog in the Detroit bootlegging scene; a brave woman leads a labor union against organized crime.