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

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.

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

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.

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.

Strange unmarked helicopters stalk the team through the Olympic Peninsula.

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.

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.

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 one team member down, Russell and Mireya head back into the forest to hunt down their leads; their intense investigation uncovers their first pieces of possible Bigfoot evidence.

As Bryce works with Jeff Meldrum to analyze the hair sample, Russell discovers a structure he believes is a Bigfoot nest; new team member Ronny joins Mireya in a race to the nest to collect DNA samples that will break open the investigation.

Mireya and Ronny make a powerful discovery in the area surrounding the nest. When Russell suddenly falls ill, Bryce tests the theory that Bigfoot can render humans sick by emoting infrasound and is doing this to keep the team out of its territory.

The team plants tiny trackers around the clearing hoping they will cling to Bigfoot's fur. Mireya and Ronny return to where they heard whistles and saw glowing eyes. This time they have a plan: Mireya agrees to be bait in order to lure out Bigfoot.

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.

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.

The team believes they’ve finally narrowed down where Bigfoot has been hiding throughout their expedition. A high-tech drone is brought in to investigate, and what takes place next is truly astonishing!

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 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.

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.

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.