An ambitious farmer, Henry Whipple, is determined to instill his sales tactics in his 20-year-old son, Dean Whipple. However, Dean is hesitant about adopting his father's ruthless business strategies, particularly as they contrive to buy land during a family funeral. Upon returning home, Henry is excited to see his estranged eldest son, Grant, who has hinted at a return through a postcard, yet his actual return seems doubtful. As the narrative unfolds, we find that Henry is secretly engaged in an affair with Meredith Crown, a former high school love, showcasing his continuous self-serving decisions that jeopardize both his marriage and future.
As Henry navigates the cutthroat world of genetically modified seed sales, he finds himself at odds with his fierce rival, Jim Johnson. Meanwhile, Dean aspires to escape the family farming legacy and his father's neglect by pursuing a career as a professional race car driver. He invests significant time training for races and enjoys moments with his 18-year-old girlfriend, Cadence Farrow. While Cadence embodies the spirit of a country girl, she also possesses a sharp business acumen that could benefit Henry, all while being aware of the father-son dynamic with pretty women like Meredith.
During a local racing competition, Dean showcases his aggressive driving style, which leads to an unfortunate crash involving Jim Johnson's son, Brad. This incident further intensifies the rivalry between Henry and Jim. When racing scouts offer Dean a chance to compete professionally, he needs $15,000 to participate, and his mother, Irene, steps in to provide the funds, creating rifts with Henry, who fears the repercussions of his illegal activities.
Faced with immense pressure during his NASCAR opportunity, Dean falters and ultimately squanders his escape from the farm, leading him down a spiral of poor life choices, including an affair with Meredith which fractures his relationship with Cadence. In a moment of despair, Dean recklessly drives into a tree, resulting in hospitalization and a lengthy recovery. However, once he's released and fully healed, he lacks the motivation to pursue racing, despite Henry buying him another car.
As Henry grapples with the looming threat of an investigation by Liberty, the seed company from which he purchases and sells products, he is caught in his deceitful practices of cleaning seeds instead of complying with company policies. A confrontation ensues when Cadence, enraged by Dean's infidelity, confronts Meredith at her home, leading to a fierce exchange where she declares, > "Find your own boyfriend, old whore." This revelation forces Meredith to sever ties with both Henry and Dean.
The following morning reveals to Dean the extent of his father's criminal dealings through Cadence, who ends their relationship, leaving him overwhelmed by loss and betrayal. In his search for answers, Dean wrongly suspects Jim Johnson as the informant and, after a violent clash with Brad, he accidentally kills him. Together with Henry, Dean buries Brad and the murder weapon, deepening the web of deceit they find themselves entangled in.
Henry learns the true informant is Larry Brown, the tenant farmer who missed out on purchasing land earlier. In a desperate attempt to salvage their situation, Henry offers Larry a life tenancy in exchange for halting the investigation. Meanwhile, Irene senses something amiss with her husband and son, leading to a confrontation that reveals the extent of their dark actions. Dean overhears Henry confessing his love and sense of obligation toward him, a realization that both confounds and binds him closer to his father.
As life continues, Dean begins to mirror his father's cutthroat ways, and together they surpass Jim Johnson in client sales, who is left reeling from his son's disappearance. Despite returning to business as usual, Dean remains emotionally scarred, choosing not to reach out to Meredith or other women following his breakup with Cadence. In an unexpected farewell, Cadence thanks Henry and prepares to leave town, hoping to chart her own path. The story concludes with Irene receiving another postcard from Grant, hinting at his potential return, while the Whipple family hosts a client party, their strained smiles masking the underlying turmoil they share.
