1952. Somewhere deep within Argentina, the popular belief is that when a man dies betrayed, he must be avenged by his first born, so his soul can rest in peace. This is the story of Cali, a teenager whose father was murdered during a horse race, metres away from the finish line; Cali must become a man ready to avenge his death. He is looking for revenge, but instead he finds the love of Lucía, and the help of an old ranch foreman, who takes him in as his own son. When revenge is an obligation, the blood screams.
Based on the novel Sapucay, by Horacio Guarany.