A documentary filmmaker turns his lens on an enigmatic conspiracy theorist who claims he's found the entrance to a vast underground city populated entirely by monsters.
Ray Wise
as William Dekker
Adam Green
as Self
Kane Hodder
as Self
Mick Garris
as Self
Rileah Vanderbilt
as Self
Josh Ethier
as Self / Vance / Little Bigfoot
Tom Holland
as Himself
Sarah Elbert
as Self
Alex Pardee
as Self / Park Ranger
Nic Henley
as Harlequin
Caitlyn Brisbin
as Tombstone
Robert Pendergraft
as Shadow
