In this part we investigated project overlord.We arrived to planet Aite and found Cerberus research facility. n this facility cerberus scientists were trying to find a way to control Geth by combining human mind with VI. Head scientist Archer said that his autistic brother volunteered for this experiment. This experiment ended in disaster- Archer's brother became some kind of VI virus. To stop it from spreding and creating a technological apocalypse we had to reach Atlas Station. To do that we first had to go and overridde lockdown in Prometheus and Vulcan Stations.
We traveled to Vulcan station first. It was located in geothermal plant that powered up all four Cerberus facilities. We fought with some mechs. After that we got to Prometheus Station. This station was a crashed geth ship. At first we had to destroy ship's cannon. After that we entered the station. At first geth were anactive but they attacked us as soon as we overridden the lockdown. After that we traveled to final Atlas Station. There we touched some button and Shepard was transported to VI virus reality. We had to do the rest of this mission without crewmates because they stayed in the real world. In VI reality we found out that Archer's brother did not want to be a test subject. David Archer was able to communicate with the Geth so his brother attached him to some kind of machine in hopes that he would be able to control the Geth. We stopped the VI from spreding and saved David Archer. What hid brother did to David was an abomination. We decided to take David to Grissom Academy where he will get a proper care. Once we returned to the Normandy we spoke with Grunt. He went on a little rampage and was not able to control himself. so he asked us to take him to krogans homeworld.