"Bitter Roots," the 15th episode of Big Sky season one, premiered on May 11, 2021, serving as the penultimate installment that concludes the Kleinsasser family storyline. Directed by Alonso Alvarez-Barreda, the episode features Cheyenne Kleinsasser taking control of the ranch while Cassie and Jenny face final threats from the family. Read the full recap at Nerds That Geek . Bitter Roots | Big Sky Wiki | Fandom