Gabrielle becomes Queen of the Amazons after Ephiny dies at the hand of Brutus, and Xena must fave Caesar and Pompey and their armies while keeping an eye on a rebellious Amazon.

Callisto returns from Hell with a double mission: corrupt Xena and make Julius Caesar emperor, but plans change when Caesar's allies turn on him and when Roman soldiers capture and crucify Xena and Gabrielle.

When Cleopatra is murdered, Xena poses as the Egyptian queen in order to find out the identity of the killer, while romancing Marc Antony.

After escaping from Hades and capturing the Fates, Caesar changes the Threads of Fate in order to change his destiny. He makes Xena his empress and rules the world by her side. Gabrielle is a talented playwright and Alti is the High Priestess of Rome, and she wants all the power for herself and will stop at nothing to get it.