1867 – The American Civil War is two years over, and the French invaders of Mexico are in retreat.

A madman plots to overthrow Mexico’s president, Benito Juarez, and start a war to restore las Tierras Perdidas—the Lost Lands—to Mexico.

If discredited Union Army major, Jose Scanlon, and ‘buffalo soldier’, Lije Fisher, don’t put paid to the lunatic scheme, thousands—Americans, Mexicans, and Indians—will die.

Trouble is, Scanlon is in love with the madman’s daughter.