A catastrophic storm threatens the expedition. Armed with AI technology, the team are ready to meet the elusive cryptid before it's too late.

The team discover tree structures on different sides of the same mountain. As a storm approaches, Bryce prepares to pinpoint Bigfoot's location.

The team uses new methods to find Bigfoot in NorCal's backcountry, hoping to lure it out of hiding. Russell travels overnight to gather key evidence.

Bryce talks with a witness who had an experience with a family of Bigfoot, and Mireya reaches new heights in search of physical evidence.

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.

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.

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

Bryce Johnson, Dr. Mireya Mayor, and Russell Acord scour North America in search of the cryptid known as Bigfoot; they return to northern California to explore compelling evidence and unlock this centuries-old mystery.