Two years after Commander Shepard repelled invading Reapers bent on the destruction of organic life, a mysterious new enemy has emerged. On the fringes of known space, something is silently abducting entire human colonies. Now Shepard must work with Cerberus, a ruthless organization devoted to human survival at any cost, to stop the most terrifying threat mankind has ever faced. To even attempt this perilous mission, Shepard must assemble the galaxy's most elite team and command the most powerful ship ever built. Even then, they say it would be suicide. Commander Shepard intends to prove them wrong.

Soldiers. Scientists. Adventurers. Oddities. In a time of global crisis, an international task force of heroes banded together to restore peace to a war-torn world: OVERWATCH. It ended the crisis and helped to maintain peace in the decades that followed, inspiring an era of exploration, innovation, and discovery. But after many years, Overwatch's influence waned, and it was eventually disbanded. Overwatch is gone… but the world still needs heroes.