Science 2022 - 4 seasons 28 eps TV-PG Returning series

Mysteries of the Abandoned: Hidden America

2022 - 4 seasons 28 eps TV-PG

7.1

7.2

Season 4

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Season 1

Season 2

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Season 4

All episodes

42 min

S4 · E1 Apr 23, 2025

The Cult Hotel Episode 1

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

8.0 · You

42 min

S4 · E2 Apr 30, 2025

Hunting for the Ship of Gold Episode 2

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.

7.7 · You

42 min

S4 · E3 May 7, 2025

America's Gun Factory Episode 3

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

7.6 · You

42 min

S4 · E4 May 14, 2025

Nazi Secrets in the Empire State Episode 4

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.

7.6 · You

42 min

S4 · E5 May 21, 2025

The Vermont Doomsday Gun Episode 5

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

7.6 · You

42 min

S4 · E6 Jul 9, 2025

Idaho's Atomic Ghost Town Episode 6

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.

7.5 · You

42 min

S4 · E7 Jul 17, 2025

The Lair of the Mothman Episode 7

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.

7.8 · You

42 min

S4 · E8 Jul 30, 2025

Secrets of the Olympia Brewery Episode 8

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.

7.6 · You

42 min

S4 · E9 Aug 6, 2025

America's Hidden Training Camp Episode 9

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.

9 episodes in Season 4

Some details come from TheTVDB.

Mysteries of the Abandoned: Hidden America