The Zerg destroyed our homeworld, and the remaining humans fled into the unknown reaches of space. One fleet annihilated the pursuing Zerg in a star system, but their fleet was almost completely destroyed, with only one warship crash-landing on a massive planet. They originally intended to gather resources and repair their ship on this planet, but this planet was unusual. In a few years, all the personnel on this warship died, leaving only an advance fortress. Decades later, Su Feng arrived at the fortress, along with a StarCraft Terran system.