For generations, General Rafael Trujillo (Olmos) has ruled the Dominican Republic with a mixture of terror and savagery... until Minerva Mirabal (Hayek) dares to oppose him. Inspired by her love for a rebel leader (Marc Anthony), Minerva and her sisters - known as Las Mariposas (The Butterflies) - endure unimaginable hardships in a battle for the very soul of a nation. But as their acts of bravery gain notoriety, Trujillo's forces close in, determined to put an end to Minerva's heroics.