When Russell films a shocking piece of video evidence, the whole team assembles to follow the trail. After a grueling journey through treacherous terrain, their search culminates in a monumental discovery.

The team pulls out all the stops to corner Bigfoot. Mireya travels on horseback to find evidence, while Ronny recruits a psychic specialist to hone in on the creature. Finally, Russell catches sight of what could be real proof of Bigfoot.

The investigation launches into high gear as the team discovers evidence that could prove Bigfoot’s existence once and for all. When uncontrolled wildfires erupt in Washington, it’s a race against time to find the truth before it burns away.

After coming closer than ever to proving the existence of Bigfoot in Oregon, the team continues their search in the mountains of Kentucky. They'll spend the next two and a half weeks in search of Sasquatch -- unless it finds them first.

A visibly shaken Ronny and Mireya want answers about the unexplained activity they encountered the night before, while Bryce is baffled by strange lights on the security camera. The expedition takes a frightening turn when a team member goes missing.

The team discovers a Kentucky cave system that may be Bigfoot's lair.

At their new base camp in California, the team records a howl unlike anything they've heard before. Later, Bryce learns of a potential Bigfoot coverup by the US government. And Russell, Ronny and Mireya come face-to-face with danger while on a night hunt.

The team treads on dangerous ground as it scopes out a Bigfoot hideout.

After receiving a recording of an alleged Bigfoot call, Bryce blasts the howl over a speaker to elicit a response. With Russell positioned high on a hill and Ronny and Mireya down in the valley below, the team may get the encounter they're looking for.

The team investigates strange reports of Bigfoot turning invisible.

Using new tracking technology, Russell gets closer to his quarry than ever before. Bryce learns that Bigfoot may have psychic powers, leading Ronny to use an unusual technique to draw one out. And Mireya is startled by strange lights in the night.

The expedition takes an intriguing turn when Bryce comes across a photograph of a human-like hand with claws. Ronny and Mireya use never-before-seen tech to narrow down their search after a piece of potential evidence washes away in a thunderstorm.

The team explores a new target zone in the Bigfoot capital of the world.

Bryce enlists a hypnotist to unlock the memories of a Bigfoot witness.

Ronny, Mireya and Bryce search for a top-secret government research facility hidden beneath the forest, and a witness comes forward with his up-close encounter with Bigfoot. Meanwhile, Russell is unnerved by a gruesome discovery.

The team ascends massive pine trees in search of evidence from above. Bryce uncovers government secrets that may include underground bunkers. A 3D image specialist discovers possible man-made structures deep in the forest and captures a ghostly image.

Strange unmarked helicopters stalk the team through the Olympic Peninsula.

Russell tracks a massive creature to a box river canyon but finds he can't escape a shadowy figure on the prowl. Bryce discovers Bigfoot is lured in by whistling, while Ronny and Mireya realize something is watching them from across their base camp.

The investigation reaches a fever pitch as the team uncovers a potential Bigfoot kill zone directly above Lake Fear. Thrilled by their findings, they launch a squadron of patrol drones to sweep the area for definitive proof of the existence of Sasquatch.

With just three days left in the Kentucky expedition, the team investigates a strange tree structure that could be key to proving the existence of Bigfoot. A bloodhound tracker leads them further up Pine Mountain and to a mysterious cave entrance.

A mysterious shadow figure gets too close for Ronny and Mireya's comfort. Russell tracks a large creature along a well-used game trail but quickly realizes he's being stalked in return. Bryce makes an unsettling discovery at the bottom of a lake.

Deep in a Kentucky hollow, Mireya and Ronny encounter several unidentified creatures responding to Bryce's recording of a Bigfoot howl. Their investigation of an old mining road uncovers an enormous footprint, confirming they are on the right track.

The team has a truly shocking sighting, only to see their best lead yet lead slip through their fingers. But a groundbreaking tip leads Bryce to wrap up their expedition in Washington State and relocate to a new Bigfoot hot spot.

Russell finds fresh clues along an abandoned railroad track, while Ronny and Mireya experience a hotbed of unexplained sounds deep in the forest. Bryce learns chilling new information about the history of Bigfoot in Northern California.

Russell uses an unlikely ally to pursue a strange predator, while Bryce investigates the team's recent run-ins with mysterious floating orbs. After an invasion of their base camp, Ronny and Mireya use modern means to track a creature in the woods.