We’re still on the Citadel, trying to prove that Saren has gone rogue. In the process of digging up clues, though, we assemble the rest of the team. Garrus the Turian is doing his own independent investigation, and when we find him he rolls in. Wrex, a Krogan badass, is ready to join us. And Tali, a Quarian who always wears her head mask, has information we need.
While on her Pilgrimage, a Quarian tradition, Tali disables a Geth and accesses its memory core. There she finds proof that Saren is working with them. When we take her and her recording to the Council, they finally declare Saren a rogue and grant our Shepard Spectre status so that we can hunt him down. Hopefully we’re now ready to leave the station and begin our adventure.
Tali delivers much information that isn’t completely relevant at this point, but we should keep it in reserve:
Saren seeks the Conduit, a form of Prothean technology like the Beacon. Then we’re introduced to the idea of the Reapers, an advanced machinist species that wiped out the Protheans 50,000 years ago. The Geth revere the Reapers as gods, and Saren is presenting himself as the Reapers’ prophet, and the one who can bring them back. Working with him (identified on the recording) is Matriarch Benezia, a powerful Asari elder.
Also, something mostly irrelevant until Mass Effect 2, Wrex explains about the genophage. The Salarians infected the entire Krogan race with it and now his people, unable to reproduce, are dying out.
