An island of dense jungle is home to an abandoned complex with a dark past of bloodshed and rebellion, and new discoveries reveal why it was built and the circumstances of its downfall. Stories: 1) Royal Hospital Haslar, Hampshire, UK; 2) Sloss Furnaces, Birmingham, Alabama, USA; 3) Sazan Island, Albania; 4) Cinnamon Bay Plantation Ruins, St. John, US Virgin Islands
| Name | Type | Role | |
|---|---|---|---|
| Tom Williams | Producer | Series Producer | |
| Andrew Lessner | Producer | for SCIENCE CHANNEL | |
| Tamsin Curry | Producer | Shooting Producer | |
| Luke Wales | Producer | Series Producer | |
| Rob Bell | Guest Star | Self - Engineer and Adventurer | |
| Michele Mitchell | Guest Star | Self - Historian and Author | |
| Ken Wild | Guest Star | Self - National Park Service Archaeologist | |
| Dominic Selwood | Guest Star | Self - Historian and Author | |
| Jim Meigs | Guest Star | Self - Author and Journalist | |
| Eric Birbeck | Guest Star | Self - Local Historian, Haslar | |
| Geoffrey 'Geoff' Wawro | Guest Star | Self - Historian and Author | |
| Tyler Malugani | Guest Star | Self - Historian, Birmingham | |
| Naim Muho | Guest Star | Self - Ex-Sazan Island Commander | |
| Lynette Nusbacher | Guest Star | Self - Military Historian | |
| Fran Scott | Guest Star | Self - Scientist | |
| Sascha Auerbach | Guest Star | Self - Historian | |
| Neil Laird | Executive Producer | for SCIENCE CHANNEL | |
| Bruce Burgess | Executive Producer | ||
| Henry Scott | Executive Producer | ||
| Luke Wales | Director | ||
| Tom Williams | Director | ||
| Tamsin Curry | Director |