Bárbara is the title of an Argentine science fiction comic book series written by Ricardo Barreiro and drawn by Juan Zanotto, and the name of its protagonist.
After an attack that reduces Earth to a primitive state, they send a race of killer robots to the planet's surface, "The Beasts", with the task of enslaving any human survivors.
Bárbara is a member of a subdued tribe living in the area of what was once Buenos Aires, who worships one of the Beasts through human sacrifices.
She then discovers the deception perpetrated on her race, and decides to start a rebellion, called the Great Revolt.
The same capabilities can now be found in the new generation of humans, but even more powerful than hers, and they are instrumental to the final destruction of the alien invaders.