The Vong raid was as quick as it was deadly. The simultaneous Peace Brigade strikes on Aeotheran and Tarthos as well as the main Vong assault on Sepros were coordinated with such precision that it could only have been an inside job. The main Vong battlegroup has kidnapped the Overlord’s son from Sadow Palace and withdrawn. However the Peace Brigade forces of Admiral Yashais dei Izvoshra still hang over the other worlds, a warning for Fleet Admiral Araic Simonetti and what survives of the Dlarit Navy to keep away or else the colonies will be destroyed from orbit.

Colonel Septka of the Palace Guard has discovered the identities of the two main perpetrators. With no way to get off world whilst the two fleets in orbit remain in a standoff, you are your battleteam have been dispatched to the hidden fortresses from which the Vong and the local turncoats planned the invasion. It is up to you to hunt them down and recover the codes for the planetary defence networks before the orbiting Peace Brigade fleets lose patience and initiate a full Base Delta Zero orbital bombardment.