 A good man and his son are kidnapped by a bunch of bandits called  Los Chacales . Twenty years after, another band of  banditos  (Los Plateados) terrorizes the region. The leader of  Los Plateados , El Tigre (Ortiz), is the boy kidnapped 20 years before. El Tigre knows beautiful Dolores (Gallardo) and decides to conquer her... without knowing she s his long-lost sister.