Buffy the Vampire Slayer (1997 - 2003)

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

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

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

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

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

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

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.