YAY! Season 2!!!!
When She was Bad
Ep 201
Aired September 15, 1997
IMDB summary: Buffy returns from summer vacation sporting an attitude and suffers from recurring nightmares involving the Master. Meanwhile, the Anointed One and his followers plot their revenge.
Directed by Joss Whedon
Written by Joss Whedon, Rob DesHotel, and Dean Batali