The first Episode of Destiny 2 following the demise of the Witness in The Final Shape sends players on a quest to Nessus, where they must uncover why the local Vex on the planetoid have been behaving strangely. To help with that, players will need the help of Failsafe, the AI of the downed Exodus Black colony ship, and her ability to research the Vex with a high degree of familiarity.