Before the railroad came through from Corpus Christi in 1880, Laredo in Texas was more or less isolated and a law unto itself. From its site along the lower Rio Grande and across the river from the Mexican city of Nuevo Laredo, it took life as it came, with a fine disregard for occasional lawlessness - which of course suite big Mac Hollis to perfection - for he was the rustler king of the Rio Grande...