Season 4

October 19, 1999

As Buffy gets to know a charming student named Parker, Spike searches obsessively for a possibly-mythical treasure.

October 26, 1999

On Halloween, Buffy and her friends find themselves trapped inside a haunted frat house complete with real bats, zombies, and a terrifying demon.

November 2, 1999

Xander finds employment as a bartender at a pub where some of Buffy's friends turn into terrifying Cro-Magnon creatures.

November 9, 1999

When Oz falls hard for a sexy singer who also happens to be a werewolf, he must choose between Willow and his own animal instincts.

November 16, 1999

Spike finds himself targeted by a group of commandos after he escapes from a military lab underneath the Sunnydale campus.

November 23, 1999

On Thanksgiving, Buffy encounters the spirit of a Native American warrior whose people were wiped out by settlers.

November 30, 1999

One of Willow's spells causes her statements to become reality, with consequences both entertaining and life-threatening.

December 14, 1999

When everyone in Sunnydale loses their voice, the Scooby Gang must silently solve the mystery of the monsters who stole their ability to speak.

January 18, 2000

While attempting to redefine her relationship with Riley, Buffy must also stop demons that are determined to reopen the Hellmouth.

January 25, 2000

Ethan Rayne returns to town and transforms Giles into a demon. Spike is the only one who can help.

February 8, 2000

Buffy teams with Riley after she is allowed access to the Initiative; Spike is targeted by commandos.

February 15, 2000

Tension erupts between Buffy and an ailing Riley as they pursue Professor Maggie Walsh's killer.

February 22, 2000

Faith awakens from her coma and seeks revenge against Buffy.

February 29, 2000

Having switched bodies with Buffy, Faith enjoys freedom. Meanwhile, Buffy finds herself at the mercy of the Watcher's Council.

April 4, 2000

Buffy senses that something is amiss when Jonathan becomes a hero to everyone in Sunnydale.

April 25, 2000

Buffy and Riley's passionate lovemaking energizes supernatural elements inside a frat house.

May 2, 2000

Oz's return to Sunnydale leads to his incarceration by the Initiative and complicates the relationship between Willow and Tara.

May 9, 2000

After joining forces with Adam, Spike drives a wedge between Buffy and her friends. Meanwhile, Angel's return to Sunnydale leads to a violent confrontation with Riley.

May 16, 2000

Having gained control of Riley's mind, Adam sets in motion his plot to create an army of unstoppable soldiers and destroy the Initiative.

May 23, 2000

Buffy, Willow, Xander, and Giles experience dreams in which they are pursued by a mysterious figure.