Buffy's life may hang in the balance as Giles uncovers an ancient book that foretells not only her death, but also the end of the world.

Buffy discovers Angel's dark secret and hesitates to do anything about it, which could spell danger for someone she loves.

A series of strange occurrences lead Buffy and her friends to discover that their worst nightmares have literally become reality.

When teen vampire slayer Buffy tries to start a new life at Sunnydale High, she discovers that the school sits atop a demonic dimensional portal.

Buffy and her friends encounter a powerful vampire bent on opening a portal to a dimension inhabited by demons.

Buffy suspects she has a witch on her hands when the cheerleading squad falls victim to sudden blindness and spontaneous combustion.

Buffy suspects that a ventriloquist's dummy may be harvesting organs from classmates performing in a talent show.

When an invisible menace starts attacking students and faculty at Sunnydale High, the Scooby Gang traces the problem back to Cordelia.

With Buffy preoccupied by her date with Owen, Giles is trapped by a group of vampires seeking to raise a powerful leader.

Xander and several other students are possessed by the spirit of a demonic breed of hyenas that wreak havoc at the high school.

Buffy's biology teacher is killed by a giant praying mantis that assumes the form of a beautiful substitute teacher.

Willow's new Internet chat buddy turns out to be a powerful demon electronically unleashed from a centuries-old, newly digitized book.