In 1947, the peasant Jones and his four year-old son Julinho are executed by Jarbas and the other five brothers of his wife Martha that do not accept the marriage of their sister with a lower-class man. However, Júlio survives and is raised by his uncle José that trains him in shooting to revenge the death of his father. Thirty years later, Júlio and José seek out Jarbas and his family, and they discover that the brothers own night-clubs and brothels. Further, they are near bankruptcy and need to sell one farm to raise a large amount cash and quit their debts. The brothers send a carrier to bring the wallet of cash cuffed to his wrist in an interstate bus. However, Júlio uses chloroform to dope the emissary during the night and replaces the wallet by another with paper, stealing the money. When the criminals discover that they have been lured and robbed, they kidnap the seventeen out of the eighteen passengers of the bus and bring them to the basement of their farm to be tortured to disclose where their money is. Meanwhile, José's daughter Marisa, who is the lover of Júlio, joins them to help José and Júlio to revenge and rescue the innocent passengers from the dangerous gang.