Who's Gurkhan?

Plot:

Gabrielles comes home to Potedaia, where she meets her sister Lila. There, Lila tells her that a man called Gurkhan kidnapped her daughter, Sarah, and eventually killed her parents and her husband. Looking for revenge, Gabrielle decides to Gurkhan's palace in the walled city of Moghador, in Northern Africa, with Xena, Eve and Virgil.