According to the series first trailer, released Wednesday, Ridley Scott’s take on the Halo universe will focus on a weaponized virus able to wipe out the human race. Digital series Halo: Nightfall follows a new character for the franchise, Agent Jameson Locke, through several episodes. Locke and other USMC members are up against the alien race the Covenant, who are a prevailing enemy in the Halo universe. Nightfall will be delivered to fans as part of the Halo: Master Chief Collection on Nov. 11.