DVD Dune: Prophecy - Season 1

Ten thousand years before Paul Atreides joined the Fremen to lead an uprising on Arrakis to take down House Harkonnen, two sisters (Valya and Tula Harkonnen) create the mysterious all-female order called the Bene Gesserit. In Dune Prophecy, the siblings combat forces that threaten the future of humankind.