Mystery of the Serpent Mound
Secrets of the Underground · Season 1 · Episode 2
Rob Nelson explores mysterious tunnels beneath Denver's airport and capitol building to investigate rumors of a secret organization operating below. In Ohio, he tries to uncover the ancient secrets of a mound shaped like a serpent.
Episode Details
Air date, runtime, timezone, and episode position.
Season
1
Episode
2
Air Date
21/Feb/2017
Air Time
22:01
Runtime
60 min
Overview
Episode summary.
Rob Nelson explores mysterious tunnels beneath Denver's airport and capitol building to investigate rumors of a secret organization operating below. In Ohio, he tries to uncover the ancient secrets of a mound shaped like a serpent.
Episode Navigation
Move between previous and next episodes.