Alexander, the King of Macedonia, leads his legions against the giant Persian Empire. After defeating the Persians, he leads his army across the then known world, venturing farther than any westerner had ever gone, all the way to India.
When brash Texas border officer Mike Norton wrongfully kills and buries the friend and ranch hand of Pete Perkins, the latter is reminded of a promise he made to bury his friend, Melquiades Estrada, in his Mexican home town. He kidnaps Norton and exhumes Estrada's corpse, and the odd caravan sets out on horseback for Mexico.
