Nearly a year after being forced out of Washington State by wildfires, the team reviews their previous investigation into the existence of Bigfoot. They reveal startling new evidence and get insight from legendary primatologist Dr. Jane Goodall.

After finding strange evidence in California, the team journeys to Prince of Wales Island, Ala., to find Bigfoot; as mysterious screams terrify the locals, Ronny, Mireya and Russell uncover chilling proof that they're not alone in the wilderness

Ronny suspects a shapeshifting monster from Alaskan lore may be responsible for the haunting howls he and Mireya heard near a remote lake. Russell chases a bipedal creature on a rampage, and Bryce analyzes potential Yeti hairs with shocking results

Russell uses a robotic dog to explore an abandoned mine and discovers some unusual evidence.

Evidence of a cloaked Bigfoot leads the team to investigate around the abandoned mine, while Ronny and Mireya try a baiting technique, Russell tracks strange sounds to a mysterious grove; Bryce stumbles across evidence of a possible missing person

After being stalked and hearing strange whistles, Ronny and Mireya decide to launch a sound trap; Russell finds himself trapped after pursuing a possible Bigfoot on a nearby island; Bryce learns a witness was withholding terrifying information.

Strange sounds lead to a disturbing discovery for Ronny and Mireya. Bryce hears blood-curdling screams near the target zone. And Russell tracks a mysterious creature as it makes its way to the mainland

When a Bigfoot tracker is taken from Prince of Wales Island, the team decides to split up. While Russell and Mireya investigate suspicious heat signatures on the mainland, Ronny stays back and encounters something unseen in his camp. And Bryce makes a remarkable discovery

Following their discovery of possible Bigfoot handprints, the team splits up to investigate mysterious tracks that lead to an icy and perilous glacier

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

The team returns to the Olympic Peninsula with a plan to lure out a Bigfoot by releasing primate pheromones. But after Ronny and Mireya see something watching them, and Russell is blindsided, it becomes clear -- the hunters are now the hunted.

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.

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.

An elite team of specialists use an advanced data algorithm to pinpoint when and where to encounter Bigfoot. Armed with the latest technology, they venture into the unforgiving forests of central Oregon in search of the elusive beast.

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.

Mireya’s darkest nightmare comes true. Russell investigates a possible Bigfoot underwater passageway. Bryce secures an airship to survey the final square miles for Bigfoot's heat signature.

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.

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.

After Russell records thermal imagery he's convinced is Bigfoot, Bryce hurries to have the footage analyzed by experts. The evidence is staggering. Mireya and Ronny have a terrifying experience when they realize they're not alone in the forest.

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.