Oz picks out the kid's photo from a yearbook, identifying him as Tucker Wells, and saying they had a class together. Wesley says something stupid. I borrowed that macro from Strega. Xander notices that Buffy is miles away, but doesn't really engage her. Willow hacks into Tucker's email account, and conveniently finds a message that basically says he's going to attack the prom. Giles realizes that Cordy's analysis of the hellhound's sartorial attack habits is spot-on, and she gloats. They all groan that the prom's a no-go, but Buffy, suddenly all business, nips that line of thinking in the bud: "I'm gonna give you a nice, fun, normal evening if I have to kill every single person on the face of the earth to do it." Xander, with the only line of his I consistently love: "...Yay?"
Buffy suggests that Wesley go to Tucker's house. He none-too-subtly suggests that he could use back-up, and Buffy allows him to take Cordelia. Oz and Willow go to talk to the recipient of Tucker's prom email. Buffy sends Xander to the magic shop -- which, she conveniently adds, is next to April Fools -- to see if anyone's bought supplies to raise a hellhound. Buffy, still in kick-ass-and-take-names mode, tells Giles that if the hellhounds eat brains, Tucker's got to be feeding them. Cut to a slaughterhouse. Some dude helpfully gives Buffy Tucker's address. Across the large room, she sees Angel buying some blood. Angel sees her, and asks how she is. She says she's fine. At the look on his face, she tells him she can lie if she wants to, because they're broken up. He tries to tell her he misses her, but she says she doesn't have time for emotions with the prom killer on the loose. He asks if she's still planning to go, and she says yes, but strictly in a chaperone capacity. He offers to help with the prom killer, but she shoots him down. Upon seeing his wounded look, she unbends a little and thanks him, then leaves.