A mercenary General in Mexico offered to use his army for the Confederate cause. Belle Boyd, the Rebel Spy, received orders to deliver $15,000.00 as payment for his services. Helping her rode two tough Texans, the Ysabel Kid and his father. Matched against them were the United States Secret Service, determined to prevent the delivery; the French, who wanted the gold for Maximilian; Mexican supporters of Juarez who saw it as a way of freeing their country from foreign domination; and, when word of it leaked out, the worst rabble of murderous thieves the bloody border between Texas and Mexico ever saw.