Untouchable is a South Korean television series that centers on the Jang family, a powerful dynasty that has dominated the city of Bukcheon for three generations. The story follows two brothers, Jang Ki-seo and Jang Joon-seo, who find themselves on opposite sides of a moral divide following the death of their father and the tragic loss of Joon-seo's wife. While the elder brother, Ki-seo, chooses to embrace the corrupt and ruthless methods of their father to maintain the family's grip on power, the younger brother, Joon-seo, seeks to uncover the hidden truths behind his family's dark history and the circumstances surrounding his wife's death. As the narrative unfolds, the brothers engage in a tense psychological and physical struggle, testing their loyalties and their sense of justice. The series delves into themes of corruption, greed, and the heavy burden of family legacy, as Joon-seo navigates a dangerous web of conspiracies to expose the rot within his own bloodline. With high-stakes political maneuvering and intense emotional confrontations, the drama explores how far one man will go to dismantle a system of power that he was born into.