Bryce Johnson, Dr. Mireya Mayor, and Russell Acord have scoured North America in search of the cryptid known as Bigfoot. Now, they've returned to northern California to explore compelling evidence and unlock this centuries-old mystery -- once and for all

Deep in the Northern California wilderness, Russell stops at nothing to reach a nesting site while Mireya and Bryce uncover evidence that a family of Bigfoot is nearby. Meanwhile, Ben speaks with a witness who had a chilling encounter with Bigfoot

Deep in Northern California's lost coast, an audio expert joins the fold after the team hears unusual sounds. Russell must take shelter from a storm, and Bryce speaks with a local Hoopa Tribal Council member after reviewing illuminating footage

Russell searches a rugged hillside full of caves in Northern California's forests; Bryce speaks with a witness who hears frightening grunts; Mireya and Tobe Johnson expand their search area to determine if Bigfoot is mimicking animal sounds

Russell discovers new sights and sounds deep in the backcountry of Northern California. Bryce talks with a witness who had an experience with a family of Bigfoot, and Mireya reaches new heights in search of physical evidence of the elusive creature.

In NorCal's backcountry, the team develops a clear plan of attack to lure Bigfoot out of hiding; Russell travels overnight, hoping to gather key evidence in their search; Mireya and Bryce conduct an investigation unlike any other.

The team's investigations converge as Bryce, Mireya and Russell discover tree structures on different sides of the same mountain; as a storm approaches, Bryce prepares an AI-powered surveillance array that will help pinpoint Bigfoot's location.

An elite team of Sasquatch specialists journeys into the unforgiving Northern California wilderness in search of Bigfoot.