Self-sufficient 11-year-old Atticus (Silas Yelich) flees into the Catskill Mountains following his mother's death, and begins to find his sense of reality slipping until he's befriended by a mysterious, pot-smoking vagabond named Carter (Peter Scanavino). Atticus grew up in the backwoods, where his independent-minded mother (Lili Taylor) taught him to fend for himself. When she dies, the authorities show up at their home and Atticus retreats into the hills. The young boy becomes the subject of an intense search, but manages to survive on his own thanks to his late mother's teachings. Then Atticus meets Carter, a free spirit with a taste for cannabis, and a talent for making quick cash by selling homemade jewelry at music festivals. Although at first Carter's carefree lifestyle proves intensely alluring to his impressionable young companion, the pair soon begin to develop a mutually dependent relationship that eventually starts to weigh heavily on Atticus' increasingly troubled conscience.