An outlaw named Guerrero Hernandez is shot in the back and killed whilst attempting to free his half-brother from a small-town prison. Making a deal with the devil, Hernandez returns from the dead to take his revenge.
The breastplate of Attila the Hun is stolen as it has clues to the location of the Sword of Mars. It is said the Sword of Mars made Attila invincible and is guarded by Cerberus.