Mass Effect: Retribution

Humanity has reached the stars, joining the vast galactic community of alien species. But beyond the fringes of explored space lurk the Reapers, a race of sentient starships bent on "harvesting" the galaxy's organic species for their own dark purpose.

The Illusive Man, leader of the pro-human black ops group Cerberus, is one of the few who know the truth about the Reapers. To ensure humanity's survival, he launches a desperate plan to uncover the enemy's strengths-and weaknesses-by studying ...