When She Was Bad

In which Buffy comes back, alienates her friends, arouses Xander, and takes the Queen Bitch crown away from Cordy. Oh, she also slays vampires.

Official back-of-box synopsis:

Summer's over and Buffy's on a bummer, which makes Xander and Willow worried and has Buffy further distancing herself from Angel. When Cordelia and Ms Calendar are kidnapped, Buffy is convinced that the fight to save them and the world rests on her weary shoulders.

From the old WB Buffy website:

BACK TO SCHOOL -- When Buffy returns home to Sunnydale after a spending the summer away, Xander and Willow become concerned with her disturbingly cold and distant behavior. Meanwhile, Cordelia and Sunnydale High teacher Ms. Calendar are kidnapped and Buffy is convinced that the fight to protect them and the world from the undead is hers alone. Still relucant to risk getting close to Angel, Buffy turns him away before either one can express his or her true feelings.

Links:

This episode's page at http://www.restlessbtvs.com/, the Restless BTVS Trivia Guide

This episode's page at http://www.vrya.net/bdb/, the Buffyverse Dialog Database

Cross-reference:

episodes featuring dream sequences:

• Teacher's Pet
  Xander fantasises about being a rock god with Buffy at his feet
• The Prom
  Buffy and Angel in a nightmare wedding
• Graduation Day (part 2)
  Faith gives Buffy hints on how to defeat the mayor, plus something about 7-3-0...
• Hush
  A spooky little girl with the answer to the mystery of the Gentlemen
• Restless
  The First Slayer invades the dreams of Willow, Xander, Giles and Buffy in turn
• The Weight Of The World
  Buffy's locked in a recurring dream from which Willow has to rescue her
• this episode
  Buffy dreams that Giles attacks her

episodes in which there's dancing:

• Faith, Hope And Trick
  Faith is first seen dancing
• Bad Girls
  Buffy and Faith dance subtextily together
• The Prom
  Buffy and Angel 4 EVA!!!
• Who Are You?
  Faith takes Buffy's body onto the dancefloor
• The Replacement
  The Snoopy Dance
• Once More, With Feeling
  Again with the "well duh!"
• Him
  Daddy like! Oh my god that's Dawn!
• this episode
  Bad!Buffy has Xander all hot and bothered

Cast:

• Sarah Michelle Gellar as Buffy
• Alyson Hannigan as Willow
• Nicholas Brendon as Xander
  

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• Anthony Stewart Head as Giles
• Charisma Carpenter as Cordelia
• David Boreanaz as Angel
• Kristine Sutherland as Joyce
• Andrew Ferchland as The Anointed One
• Robia Lamorte as Jenny Calendar
• Dean Butler as Hank Summers
• Armin Shimerman as Principal Snyder
• Brent Jennings as Absalom
• Tamara Braun as Tara