Alarming rumors about the peace-abiding Duchess Satine of Mandalore prompt Obi-Wan to investigate the secluded planet. Satine wants to keep Mandalore neutral in the Clone Wars, but the actions of a violent splinter group -- Death Watch -- threaten to push the planet towards war.

Duchess Satine travels from Mandalore to Coruscant on a diplomatic mission, with Obi-Wan Kenobi, Anakin Skywalker and a team of troopers to defend her. As her luxurious starship, Coronet, makes its way through hyperspace, the Jedi must stop several assassination attempts, and Anakin discovers that Obi-Wan and the Duchess have a history together.