Ringo is a young man, who has dedicated his life to boxing, and at the peak of his career he loses the national title upon receiving the news of the death of his brother. From that moment, Ringo decides to retire from boxing. Gloria, his wife, leaves him to go live with El Turco, Ringo's main rival in the ring. Gloria's decision leaves Ringo alone in charge of the care of his son Santi. Then, Gloria will return to claim custody of her son, and in that situation, Ringo will have to obtain a job that provides fixed income, to keep custody of his son. He decides to return to boxing with the clear goal to be crowned champion.
