There's a monster lurking in the Oklahoma backcountry, and Meredith's determined to find it.

After Meredith Brady and her team survive a close encounter of the ghastly kind in Georgia, they decide to give ghost hunting a rest and travel to Oklahoma to investigate several recent sightings of the most infamous cryptid of them all: Bigfoot. Legend says this creature has lived in the area for hundreds of years, coexisting peacefully with humans. However, something must have changed, because people are disappearing, and the locals are blaming Bigfoot.

Once there, Meredith and her group team up with the local Bigfoot expert to hunt this elusive creature, traipsing through the backwoods of eastern Oklahoma in their search. Unfortunately, there's more going on in this case than she thought, and Meredith soon discovers a web of lies thicker than the Oklahoma underbrush.

While sifting through police cover ups, poachers, rednecks, and even supposed Bigfoot poop, Meredith and her team stumble upon a bloody campsite, hear strange noises in the middle of the forest, and learn that there truly are things that go bump in the night. With time running out before someone else disappears, Meredith has to figure out whether it's Bigfoot hunting people, or another monster that walks on two legs. Then she has to figure out how to stop it.