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Mysteries of the Abandoned: Hidden America
S4 E5 | The Vermont Doomsday Gun
0h 41m|TVPG|Science, Documentary|2025
A research facility spawns new technology with earth-shattering implications; a coastal haven for African Americans changes the nation; a forgotten fortress fights off a Nazi submarine; a staunch building stands firm on San Francisco's darkest day.
Season
4
3
2
1
