Jim and his girlfriend, Kelly, embark on an adventure to the forests of Northern California, chasing the legend of Bigfoot. Jim, a Bigfoot believer, is eager to explore the site of the iconic Patterson-Gimlin film, footage that purportedly captured a glimpse of the creature in 1967. Kelly, a skeptic, accompanies him to document their journey and humor Jim's enthusiasm. Together, they arrive in Willow Creek, the self-proclaimed Bigfoot capital of the world, where they interview various locals, including believers and naysayers who provide anecdotal evidence and warnings. They indulge in the tourist attractions celebrating the folklore and gather information for their quest.

Armed with camping gear, the couple ventures deeper into the woods, looking for the exact spot where the Patterson-Gimlin film was shot. Their playful banter and optimism slowly give way to unsettling occurrences as they hike. Isolated from civilization, they begin to hear strange noises at night, and they discover that the woods are more treacherous than they anticipated. As night falls, the noises grow more intense, and their sense of unease escalates. The forest's dense canopy and the enigma of what lurks within test their resolve, challenging the boundaries of their relationship and the stark contrast between belief and skepticism as they delve further into the unknown.