 Shepard can then recruit former squad member Tali'Zorah, Thane Krios, and Samara (later optionally replaced by Morinth), before being sent to explore a supposedly disabled Collector ship.There, Shepard learns that the Collectors were originally Protheans that were turned into slaves of the Reapers.With EDI's help, Shepard also finds out how to bypass the Omega-4 Relay before being ambushed by the Collectors.