Season 4

1. The Cult Hotel

Get chills in a bleak communications hub that housed a California cult and then eye a secret US Navy arsenal in Florida.

2025-04-23 • ? min

2. Hunting for the Ship of Gold

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.

2025-04-30 • ? min

3. America's Gun Factory

A company town produces weapons that transform the Wild West and a building complex revolutionizes communications on this world and beyond.

2025-05-07 • ? min

4. Nazi Secrets in the Empire State

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.

2025-05-14 • ? min

5. The Vermont Doomsday Gun

A research facility spawns new technology with earth-shattering implications and a coastal haven for African Americans changes the nation.

2025-05-21 • ? min

6. Idaho's Atomic Ghost Town

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.

2025-07-09 • ? min

7. The Lair of the Mothman

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.

2025-07-17 • 56 min

8. Secrets of the Olympia Brewery

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.

2025-07-30 • 52 min

9. America's Hidden Training Camp

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.

2025-08-06 • 52 min