Mysteries of the Abandoned · SEASON 4
Alien Hell Portal
Episode 7 · 2019-05-16

- Documentary
Episode overview
A strange complex of tunnels on the grounds of a bizarre mansion were under lock-and-key for a century. Since its rediscovery, some believe its mysterious place is a gate to hell. New discoveries reveal its secret purpose and why it was abandoned.
45 minutes
Season 4 episodes
1. World's Strangest Ghost Towns2019-04-04
2. Secret of Supervillain Island2019-04-11
3. Escobar's Castle2019-04-18
4. Labyrinth of the Dead2019-04-25
5. Treasure of Outlaw Valley2019-05-02
6. Alaska's Fort Apocalypse2019-05-09
7. Alien Hell Portal2019-05-16
8. Pompeii's Gate To Hell2019-05-23
9. Haunting on Plague Island2019-05-30