Benjamin Ortalora is a young man who leaves Buenos Aires after murdering a rival. He goes to Montevideo where his cool boldness draws the attention of gang leader Azevedo Bandeira. When the old bandit becomes ill, Ortalora makes a determined play to take his place.

In this film Paul Naschy embodies the Roman general Agrippa Vipsanio in a fierce battle against the tribal leaders Cantabrians, Corocota. Fierce battles, gladiators fighting, adventure and intrigue in this film as in the Roman conquest of Hispania.

Period piece set during the Inquisition about a witch-finder general who falls in love with the village beauty, who has made a pact with the devil to seduce and condemn the man who is killing off Satan's servants.