In the season finale, Sam is transported to an abandoned town along with Azazel's other chosen children. There he learns Azazel's plans: he and the other children must kill one another until there is one survivor – who will lead a demon army (as the Antichrist). Sam also discovers that Jessica was killed because her death would lead Sam back into hunting and Mary interrupted Azazel during the process of feeding Sam demon blood, and thus was killed. It is also revealed that Mary somehow knew Azazel. Although Sam tries to protect the other children, various fights ensue, and the children are killed off one by one. Eventually, only Jake Talley and Sam are left, at which point Sam is stabbed by Jake. Sam dies in Dean's arms.