Satellites capture two strange patterns in the desert and they are right next to Area 51; experts use cutting-edge science and new revelations from declassified documents to reveal what they are and what they mean.
| Name | Type | Role | |
|---|---|---|---|
| Trevor Albertson | Guest Star | Self - Former Intelligence Officer | |
| Devin Dennie | Guest Star | Self - Geologist | |
| Carlo Muñoz | Guest Star | Self - Military Correspondent | |
| Lindsay Moran | Guest Star | Self - Former CIA Operative | |
| Martin K.A. Morgan | Guest Star | Self - Historian | |
| Adam Ruben | Guest Star | Self - Biologist | |
| Sara Carter | Guest Star | Self - Journalist | |
| David Silbey | Guest Star | Self - Military Historian | |
| Tracy Fanara | Guest Star | Self - Research Scientist | |
| Haley Chamberlain | Guest Star | Self - Science Journalist | |
| Katie Paul | Guest Star | Self - Anthropologist | |
| George Kourounis | Guest Star | Self - Explorer | |
| Stephanie Schuttler | Guest Star | Self - Wildlife Biologist | |
| David Krueger | Guest Star | Self - Historian | |
| Kevin Hymel | Guest Star | Self - Military Historian | |
| Guy Walters | Guest Star | Self - Author & Historian | |
| Roland Kays | Guest Star | Self - Biologist | |
| Raymond Sauvage | Guest Star | Self - Archaeologist | |
| Geoffrey 'Geoff' Wawro | Guest Star | Self - Military Historian |