As Bill tries to find his place in the world beyond Pine Ridge, he confronts the difficulties of leaving behind his family and culture. Despite his desire to succeed, he struggles to overcome the systemic barriers and racism that he faces as a young Native American man. Meanwhile, Matho is eager to take on the responsibilities of adulthood, but he is also grappling with the deeply ingrained traumas that have plagued his community for generations. As the two boys navigate their respective challenges, their paths will intersect in unexpected ways, revealing the enduring bonds of family and community that anchor them both. Along the way, War Pony explores the complex lives and experiences of contemporary Lakota people, examining the struggles they face and the traditions that sustain them.