Caught in the middle of a Vega System civil war, a powerless Supergirl struggles to rescue as many slaves as she can from the brutal hands of the Citadel. Meanwhile, the Omega Men reel from the discovery that their long-dead colleaguesÑNimbus, Harpis and DemoniaÑare mysteriously still alive! Kara, however, suspects thereÕs more to their grand return than meets the eyeÉ