In a desperate attempt to rescue his critically ill son, a father risks everything by crossing the border with his two boys into the United States. His optimism of saving his son disappears when a ruthless band of violent murderers, driven by hatred for undocumented immigrants, cruelly murders him at the border. Years later, one of the sons, now a grown-up facing his own tragic illness, realizes he has just 30 days to live. Instead of giving in to despair, he embarks on a final journey to track down and punish those guilty of his father's death.