After believing themselves safe, Colonel Gascon and D-Squad discover that they are prisoners of the Separatists in a captured Republic cruiser, finding themselves enmeshed in thwarting a plot to destroy a Republic space station holding a strategic conference.

Maul's alliance helps the Death Watch and their leader, Pre Vizsla, conquer Mandalore and imprison Duchess Satine, but, when Vizsla's ambitions surface, how long will the alliance last?