Ace Bonner, an aging rodeo rider, returns to his hometown of Prescott, Arizona, only to find that his family's way of life is being threatened. His father's ranch has been sold off, and his brother Curly is busy developing the land for commercial gain. Ace is determined to prove he still has what it takes in the rodeo circuit, particularly in the upcoming Frontier Days rodeo. Struggling to reclaim his former glory and seeking validation from his family, Ace faces the physical and emotional challenge of riding a notoriously unbreakable bull named Sunshine.

As Ace navigates his strained relationships with his family, he attempts to rekindle connections with his estranged father and caring mother, both of whom have their own disappointments and hopes tied to his success. He struggles with the collision between traditional values and modern economic realities, embodied in his brother's ambitions for profit. Each interaction and rodeo event builds the narrative of a man seeking to assert his identity while dealing with the uncertainties of aging and changing circumstances. Ace’s journey centers on preserving a sense of dignity and purpose amidst a world that seems to be moving on without him.