Kristy Wu

Sherlock uses his trademark skills to investigate the brutal murder of a college professor; one of Watson's former lovers asks for her help.

Buffy accepts an invitation to dinner from Principal Wood, and the secrets of his past are revealed. Xander impresses a beautiful girl with his knowledge of knots, as she seems to be interested in tying him up. Meanwhile, The First contacts Andrew in another attempt to destroy the Potentials, and Giles finds himself tongue-tied with the new Potential, Chao-Ahn.

Faith returns to Sunnydale just in time to meet the First's evil agent, Caleb. Buffy leads the troops into a battle with Caleb, which ends with two dead Potentials and a seriously wounded Xander.

The Scoobies use a spell to transport Buffy into a shadow world, where she meets the men who created the first slayer. However, in order for her to return home, the gang must find and slay a ferocious demon.

After their horrifying loss at the vineyard, the gang turn against Buffy and begin to follow Faith instead. Meanwhile, Spike and Andrew travel to an old church to question a priest about Caleb.