Selene (Kate Beckinsale) was held captive in a facility called Antigen, but then someday, she was released by something. Selene was the 'Subject 1' in this facility.
During her exit from Antigen, she saw something as if she saw it through someone else's eyes, and thought that this should be from Michael's eyes. During her search of Michael, she encountered another vampire, named David (Theo James), who has been following her for a while. Following the vision, she finally found the source of the vision ... which was not Michael, but a little girl, Eve (India Eisley) or the Subject 2.
