Mysteries of the Abandoned · SEASON 13
Cold War Cover-Up
Episode 9 · 2026-03-11

- Documentary
Episode overview
In Michigan, a top-secret military base embroiled in an unexplained disappearance; an Italian wonderland, shattered by links to the Mafia; a California transportation hub that inspired lasting change; and a Croatian complex drawn into a brutal conflict.
Season 13 episodes
1. Blood Wedding2026-02-11
2. The Island of No Return2026-02-11
3. The Beer Riot2026-02-18
4. Do-Over Ranch2026-02-18
5. D-Day Castle2026-02-25
6. Japan's Poison Island2026-02-25
7. The Nazis' Last Stand2026-03-04
8. Agent Zigzag2026-03-04
9. Cold War Cover-Up2026-03-11
10. The Invisible Enemy2026-03-18
11. Fort Traitor2026-03-25
12. Churchill's Shadow War2026-03-25