The female warrior Callisto, tries to turn the world against Xena by committing acts of terrorism in her name, while Xena struggles to reclaim her true identity and discover why this angry young woman is doing this.

Gabrielle plans to marry Perdicus, her hometown sweetheart, and must leave Xena and their travels, at the same time that Callisto has escaped from prison and is headed straight for them with vengeance in mind.

Callisto makes a bargain with Ares, from Tarturus, to switch bodies with Xena, sending Xena into Tarturus and freeing Callisto. Xena, in Callisto's form, makes her own bargain with Hades, to make things right but the only problem is...she has one day to fix it.

Trapped in the body of Callisto, Xena must help a mortal Ares recover his sword and restore him as the god of war. If she doesn't mortals will not be able to control their anger and she'll never recover her own body.

In the year 1940, two female archaeologists searching for the Xena scrolls end up in an ancient tomb confronting legendary figures from the past.

Xena, Gabrielle and the Amazons must battle an evil Amazon, who ate ambrosia and is now a god. She wants Gabrielle dead and in order to stop her, Xena and Gabrielle resort to asking for the help of the now immortal Callisto.

Maternial instincts are in the air when Gabrielle encounters her evil daughter Hope, who has freed Callisto in order to kill Xena's son, Solan and plans on severing the friendship of Xena and Gabrielle forever.

After trying to kill one another, grief-stricken Xena and Gabrielle awake in a strange land called Illusia, filled with familiar faces, where they must face the pain and anger caused by the deaths of their children and forgive one another in order to live.

Xena and Gabrielle must stop Gabrielle's friend, Seraphin, from sacrificing herself to bring back a goddess, but they also have to contend with Ares and Callisto, who are helping Hope be reborn.

When Gabrielle's evil daughter, Hope, takes the form of her mother and joins forces with Ares to create a race of superbeings, Xena and Gabrielle must stop her reign of terror.

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.

While Joxer, Amarice and Eli try to recover Xena and Gabrielle's bodies, a war over their souls is waged with Heaven's angels and Hell's demons, which includes Callisto in their ranks.

When Eli preaches of the death of the Olympian gods, Xena and Gabrielle attempt to protect him from Ares but to no avail, while guidance is dished out by the angel Callisto and the secret of Xena's child's conception is revealed.