This series is set after the events of the film Star Wars: Episode III – Revenge of the Sith, during which the Jedi Order was purged with Order 66 and Jedi Master Obi-Wan Kenobi's apprentice, Anakin Skywalker, became the Sith Lord Darth Vader. After remaining in hiding for the next ten years on the planet Tatooine, watching over Anakin's son Luke, Kenobi is called on a mission to rescue Anakin's daughter Leia when she is kidnapped by the Galactic Empire's Jedi-hunting Inquisitors in a plot to draw Kenobi out. This brings Kenobi into conflict with Vader, who he believed to be dead, forcing Kenobi to face his traumatic past and guilty feelings.