The 'Hammer,' a powerful prototype battle station developed by the Republic, was thought to have been destroyed in the war, but it has mysteriously reappeared in the possession of the expansionist Advozsec. Determined to assert their new power, the Advozsec have been using the weapon to conquer neutral worlds in the Outer Rim. Now, before the Hammer can strike again, both the Galactic Republic and Sith Empire have set plans in motion to bring the station down.