Season 2 Episode 01 - When She Was Bad
After spending the summer with her dad in L.A., Buffy returns to Sunnydale, well, very unsunny. It seems her prom night massacre of the Master — during which she died and came back to life — gave her more of a wiggins than she admitted at the time. And to make matters worse, the Master is not quite as dead as everyone had hoped. His minions assemble with the Anointed One and plan to try to bring the Master back. This can be done by assembling those who were with him when he died — Willow, Cordelia, Giles, and Ms. Calendar, the computer teacher who Giles is stuck on. Angel warns Buffy about the Anointed One's powers, but she ignores him.
Besides being rude to Angel and nasty to Cordelia, she is cold to Willow and Xander. She even tries to make Angel jealous by dancing seductively with poor Xander, who buys her act. Xander finally tells Buffy off when the vampires beat him up and start assembling the foursome they need for their mission. Buffy rescues Willow, Cordelia, Giles and Ms. Calendar, who are hung upside down and about to be killed. In order to finish off the Master, Buffy crushes his bones. After this final act, Buffy is purged of her fear and anger and starts sobbing as Angel holds her. The next day at school, she apologizes to Giles for behaving so badly, and is mortified when she realizes how rotten she's been to her friends. But once she gets to class, Xander and Willow are quick to forgive her, and the Three Musketeers — or is it the Three Stooges? — are together again.