While casting a magic spell, Anya and Willow inadvertently summon Willow's evil double from an alternative universe.
A suicidal Spike is revivified by an approaching apocalypse, while Buffy and the gang must return to high school to seal Sunnydale's hell mouth.
Buffy and her friends anticipate the mayor's demonic ascension during the high-school graduation ceremony, while Angel hangs near death.
While the Mayor prepares for his diabolical transformation on graduation day, Buffy battles Faith to save Angel's life.
When Buffy acquires the ability to hear other people's thoughts, she uncovers a plot to massacre Sunnydale students, and the others race to find the killer.