The Romans organize a Trans-Italic chariot race, with charioteers representing each of the peoples of the known world. Rome itself is represented by a bird-shaped chariot driven by a charioteer with a very interesting name.
By a strange coincidence, this charioteer also wears a mask.
His name is on everyone's lips.
This greatly pleases Caesar, who understands that those who repeat the charioteer's name are actually expressing their loyalty to the Empire.
In the end, the mask finally comes off, and -- hey, whaddaya know?
A further coincidence: October 19, 2017, the date this comic was first published, was also the day the Italian film director Umberto Lenzi died. One of his movies was called The Invincible Masked Rider. This is the plot summary, Google-Translated from Italian Wikipedia.
Around 1670, a plague epidemic broke out in Higuera. Don Luis kills the housekeeper and takes refuge in his castle to escape the infection. At the same time, a masked man takes charge to defend the poor against the usurper. Don Luis's stepson also arrives after a long absence.