William Runner is a wildlife biologist and national park ranger in Aberdeen, Colorado who uses endurance sports to combat his inner demons. At the urging of a psychiatrist and family friend, Will embarks on a psychedelic therapy session involving 5-MeO-DMT, toad venom. After his psychedelic journey goes horribly wrong, Will experiences a series of increasingly disturbing flashbacks and nightmares, finally setting out alone into the Uncompahgre National Forest to deal with the frightened, confused, and violent entity he brought back with him. Can Will find what's haunting his visions out in the wilderness of Colorado...or will it find him first?