Xander pulls on a sweatshirt as he and Willow walk into the library. They tell Giles what happened. Willow smiles and says, "Yeah, it was really" -- she catches a look from Xander -- "bad. It was a bad thing." Hee. And amen. She foreshadows to later in the episode when she says she would hate to have lots of people staring at her. She then realizes that what happened to Xander is a recurring nightmare of his. Giles, clueing in, says he had a nightmare he got lost in the stacks, and realizes that people's nightmares are coming true. He theorizes that Billy "crossed over from the nightmare world he was trapped in," and brought the nightmare world with him. So that's how this show ended up on UPN. Willow wonders how that could have happened. Giles: "Things like that are easier when you live on a hellmouth." Well, I'd rather have a vague lame explanation than a specific lame one. Giles says they have to stop what's happening, "or else everyone in Sunnydale is going to be facing their own worst nightmares."
Cut to such a hilarious scene. Cordy opens her locker, and she sees in the mirror that her hair is frizzed out worse than Roseanne Roseannadanna's. She grabs a comb, and says she doesn't understand, since she was just at the salon. She gasps as the comb breaks. Hee.