Cities of the Underworld

Season 4 Episode 4: America's Ancient Ancestors

Don goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.

Genre:

Documentary

Seasons:

4

Episodes:

48

Actor:

Don Wildman

Quality:

HD

Status:

Ended

First Air:

2007

IMDb:

8.1