Ubirajara, chief of the Araguaias, is engaged to Jandyra. One day, however, he falls in love with Aracy, daughter of Itaquê, chief of the Tocantins and sister of Pojucã, his prisoner. He frees Pojucã so he can declare war on Itaquê and retrieve his daughter. Itaquê is wounded by other enemies...
While trying to break an "animal game" gambling scheme, Det. Bartolomeu hits his head, and the gamblers convince him that he is one of them. But everytime he hears a whistle, he changes between gambler and policeman.
Winner of a Theater talent contest, in which he was the only one to enroll, Belizário da Silva leaves his hometown, and tries to make it in Rio de Janeiro.
