Mass effect

the long version

Every fifty thousand years, a race of sentient machines, called the Reapers, invades our galaxy to harvest all organic life-forms. Navy Admiral David Anderson and his partner, Kahlee Sanders have uncovered evidence of the Reaper threat, but in so doing have exposed the machinations of a secretive paramilitary organization called Cerberus. Cerberus will stop at nothing to protect its secrets. Gillian Grayson, a young woman with extraordinary powers swears vengeance against Cerberus -- threatening to unravel everything Kahlee and David are fighting for.