22 Episodes · Premiered September 26, 2000 · Ended May 22, 2001
Dawn appears in Sunnydale as a younger sister of Buffy. No one finds this strange, but it is soon revealed that the teenager is a mystical energy called The Key that was transformed by a group of monks, using Buffy's essence, into human form. False memories were implanted in all those concerned to protect the fourteen-year-old from Glory, an exiled God from a demon dimension who wants to leave the human body in which she is trapped (Ben the hospital intern) for her home universe.
Buffy finds herself pitted against the legendary Prince of Darkness, Count Dracula.
As Harmony and her vampire gang plot Buffy's demise, Dawn adjusts to life with a Slayer.
When a demon creates a Xander double, the real Xander must convince his friends of his true identity.
While Riley's health begins to deteriorate, Spike and Harmony force a surgeon to remove the behavior modification chip embedded in Spike's brain.
Buffy learns more about Dawn after she discovers a mysterious orb linked to a group of monks being pursued by an incredibly powerful force.
When relatives arrive in Sunnydale, to celebrate her birthday, Tara uses a magic spell on her friends to keep them from learning her "secret." Meanwhile, Glory unleashes a hoard of demons to hunt down Buffy.
After being bested in a fight by an ordinary vampire, Buffy asks Spike to explain how he killed two Slayers many years earlier.
Glory transforms a snake into a terrifying monster in her quest to find the Key; Joyce is hospitalized after being diagnosed with an illness.
Buffy and her friends investigate when a meteorite transports a deadly creature to earth.
After Buffy catches Riley in the clutches of a vampire-junkie, Riley makes an important decision regarding their relationship.
While Giles is in England meeting with the Watcher Council, a bickering Anya and Willow mind the magic store and inadvertently conjure up a fearsome troll.
The Watcher Council travels to Sunnydale to review Buffy's skills as a Slayer; meanwhile, Glory puts her search for the Key into high gear.
When Dawn learns her true identity, she runs away - only to encounter Glory.
Buffy learns that Spike has a crush on her - a situation made all the more dangerous by Drusilla's return to Sunnydale.
Buffy and her friends encounter an incredibly strong female robot with only one thing on its mind - love.
Buffy, Dawn, and their friends deal with the aftermath of Joyce's death.
With some help from Spike, Dawn attempts to bring Joyce back from the dead.
A weary Buffy seeks to regain her focus by embarking on a quest with the Primitive; Spike cavorts with his very own "Buffybot"; and Glory instructs her minions to spy on Buffy's friends in the hopes of ascertaining the Key's true identity.
When Tara falls victim to Glory's incredible power, Willow embraces dark magic and launches a counterattack.
Buffy and her friends flee Sunnydale when Glory closes in on Dawn.
When Buffy lapses into a catatonic state, Willow uses magic to find out why; a tug-of-war erupts between Glory and Ben over Dawn's ultimate fate.
As Glory prepares Dawn for a bloodletting ritual that will open a portal to another dimension, Buffy and her friends prepare for battle.
