On his return home from delivering a herd of mustangs to the army, Carlos Williams is asked to lead a rescue mission. His task is to find the kidnapped wife and children of one of the local ranchers and bring them home safely. This will be no mean feat - especially as the band of Comancheros who have captured them are most likely preparing to sell them in Mexico City, into a life of slavery or worse. But good-hearted Carlos agrees to the mission, knowing nothing of the tragedies that will befall him along the way. He is determined to find his charges, whatever it takes, and as it turns out, this mission is going to take everything he has...