Journey to the heartland of the Midwest and explore an ongoing wave of sightings of a red-eyed, shapeless creature dubbed "the Chicago Mothman", giant, unknown birds, and encounters with prehistoric flying reptiles.

Each episode investigates a different monster - using cutting edge theories, riveting eyewitness accounts, and astonishing scientific evidence behind the nightmarish creatures that frighten us, fascinate us, and haunt our darkest dreams.