Several years have passed since the Burning Legion's defeat at Mount Hyjal and the races of Azeroth have continued to rebuild their once shattered lives. With renewed strength, the heroes of the Horde and Alliance have begun to explore new lands and broken through the Dark Portal to investigate the realms beyond the known world. Will these heroes find friends or foes? What dangers and rewards lie in wait beyond the Dark Portal? And what will they do when they discover that the demons they thought vanquished have returned to renew their terrible Burning Crusade?