A month later, the university has a full-fledged outbreak, which is confirmed by AMS reconnaissance teams. Jake Ellis, an agent for AMS, goes in search of fellow agent Alexandra "Nightingale" Morgan. He finds her on a date at a restaurant, where she must execute several infected people before she returns to base with Ellis. After being ordered to retrieve a blood sample from the originally infected specimen on campus, they are warned that missiles will level the campus at midnight, regardless of whether the agents are still present or not. She assigns a gender-mixed Special Forces team of U.S. Marines to provide them with backup. Ellis openly questions the competence of the soldiers, leading to friction between the two units. Upon arrival at CVU, the soldiers encounter zombies. One soldier panics and another becomes infected after his gun jams. When the others discover his injury, they sever his infected arm, but he turns and infects the team medic; both are executed by Ellis. The team continues forward into the university proper.