On a strange island off the coast of Croatia, the mysterious ruins of a long-abandoned hideout look like they once belonged to a James Bond super-villain, and new discoveries reveal why it was built and why they were abandoned.
| Title | Secret of Supervillain Island |
|---|---|
| Genres | Documentary |
| Release Date | 2019-04-11 |
| Episode Runtime | 00 Hours 42 Minutes |
| Season Number | 4 |
| Episode Number | 2 |
| Production Companies | Travel Channel, Science Channel, Procter & Gamble Productions, Like A Shot Entertainment |
