Begat by an Irish-English pirate in New Hampshire in 1828, the Wolfe family follows its manifest destiny into war-torn Mexico. There, through the connection of a mysterious American named Edward Little, their fortunes intertwine with those of Porfirio Díaz, who will rule the country for more than thirty years before his overthrow by the Revolution of 1910. In the course of those tumultuous chapters in American and Mexican history, as Díaz grows in power, the Wolfes grow rich and forge a violent history of their own, spawning a fearsome legacy that will pursue them to a climactic reckoning at the Río Grande.