Buffy: Empty Places

Xander: "I'm trying to see your point here, Buff, but I guess it must be a little to my left." It's the end of the world as we know it, at least as far as Sunnydale is concerned. Everyone is leaving town, the brand new high school is already abandoned, and Buffy is now alone, as advertised. Tonight, the role of Judas Iscariot will be played by Faith, the Vampire Slayer. No, wait, it was Dawn