As the railroad builders advance unstoppably through the Arizona desert on their way to the sea, Jill arrives in the small town of Flagstone with the intention of starting a new life.
The Man With No Name enters the Mexican village of San Miguel in the midst of a power struggle among the three Rojo brothers and sheriff John Baxter. When a regiment of Mexican soldiers bearing gold intended to pay for new weapons is waylaid by the Rojo brothers, the stranger inserts himself into the middle of the long-simmering battle, selling false information to both sides for his own benefit.
An atomic explosion awakens Gammera, a giant fire breathing turtle monster from his millions of years of hibernation.
While the Civil War rages on between the Union and the Confederacy, three men – a quiet loner, a ruthless hitman, and a Mexican bandit – comb the American Southwest in search of a strongbox containing $200,000 in stolen gold.
