Element of Surprise

The expedition continues in Washington State, where the team investigates terrain they believe may serve as mating habitat for Sasquatch, contrasting with their Northern California theory that the lost coast functions as birthing grounds. Dr. Mireya Mayor and Biko Wright pursue a thermal signature that moved through their camp days earlier, tracking it to an abandoned logging trestle bridge spanning a river hundreds of feet below. While conducting interviews near the location where Biko observed movement on a hilltop, the team begins hearing unusual vocalizations—a back-and-forth pattern of calls followed by what researchers described as resembling an animal's distress shriek. The sounds originate from across the river, accessible only by the deteriorating bridge structure.

The investigators employ multiple field methods throughout the episode. Russell Acord establishes a temporary staging area at an old logging cabin approximately four miles from Mayor and Wright's position, using it to deploy a perimeter of trail cameras—equipment he notes the team rarely utilizes due to their typically mobile investigation style. Mayor and Wright conduct thermal observation and pursue the creature that passed through camp, though nightfall and the dangerous bridge crossing force them to postpone their approach to the vocalization source until daylight. The team notes the forest falling eerily quiet following the unusual calls, a pattern Biko associates with predator presence, though the vocalizations don't match known pack-hunting species like wolves or coyotes in the region.