X
Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
Monsters Underground
Outdoor survivalist Bill Brock has brought together a team including a medically trained scientist, an expert tracker and a trained fighter to travel deep into the earth to investigate and to prove once and for all that subterranean monsters exist.
Loading. Please wait...
Content not available in your region? ExpressVPN
can help you stay connected wherever you are.
Get 4 extra months FREE with TV Guide's exclusive offer.
Cast & Crew See All
Season 1 Episode Guide See All
Episode 1
Mapinguari
21 mins
Bill Brock and his team travel to Peach Springs, Arizona to a show cave called The Grand Canyon Caverns, to investigate a newly discovered section of the cave, unexplored by man but possibly hiding a murderous creature known as the Rake.
