A strange bunker near the Kennedy Space Center once served a top-secret military function should doomsday ever come; experts use declassified intel to reveal the purpose of this forbidding facility. Stories: 1) Christianstadt Dynamite Factory, Krzystkowice, Poland; 2) AT&T Bunker, Florida, USA; 3) Coastal Forts, Gold Coast, Ghana; 4) The Sugar Refinery, Belgrade, Serbia
| Name | Type | Role | |
|---|---|---|---|
| Andrew Lessner | Producer | for SCIENCE CHANNEL | |
| Annie MacKinder | Producer | ||
| Tom Williams | Producer | Series Producer | |
| Tamsin Curry | Producer | Shooting Producer | |
| Luke Wales | Producer | Series Producer | |
| Alex Kingsley Okpei | Guest Star | Self - Local Historian, Ghana | |
| RadosÅ‚aw Domke | Guest Star | Self - Local Historian, University of Zielona Góra | |
| Geoffrey 'Geoff' Wawro | Guest Star | Self - Historian and Author | |
| Mark Oxley | Guest Star | Self - Local Expert, Florida | |
| Fran Scott | Guest Star | Self - Scientist | |
| Rob Bell | Guest Star | Self - Engineer and Adventurer | |
| Andrew Gough | Guest Star | Self - Historian and Author | |
| Claire Barratt | Guest Star | Self - Engineer | |
| Sascha Auerbach | Guest Star | Self - Historian | |
| Dominic Selwood | Guest Star | Self - Historian and Author | |
| James S. Corum | Guest Star | Self - Military Historian | |
| Michele Mitchell | Guest Star | Self - Historian and Author | |
| Ljubisa Ristic | Guest Star | Self - Local Expert, Belgrade | |
| Jim Meigs | Guest Star | Self - Author and Journalist | |
| Neil Laird | Executive Producer | for SCIENCE CHANNEL | |
| Bruce Burgess | Executive Producer | ||
| Henry Scott | Executive Producer | ||
| Tom Williams | Director | ||
| Tamsin Curry | Director | ||
| Luke Wales | Director |