[1] Roman centurion Gaius is dispatched to the fictional province of Salmacia to investigate the cessation of tributes to Rome.

Upon arrival, Gaius discovers that the local authorities, including the pretern Lutetius and his duplicitous wife Tullia, have fallen under the influence of a cult dedicated to a Moon Goddess, led by the high priest Aderbad.

Gaius uncovers Aderbad's sinister plan to resurrect the spirits of fallen Roman soldiers to form an undead army aimed at conquering Rome.

With the help of the enslaved girl Rhama, Gaius attempts to thwart Aderbad's scheme, leading to a climactic battle between the living and the spectral warriors.

[2] Rome Against Rome was the second last film by the production company Galatea studio and the film historian Tim Lucas described as representing the end of the peplum cycle as it was a "victim of the burgeoning "Spaghetti Western" movement".