Recap: Buffy & Faith fight to the death and Buffy plunges a knife into her gut. Faith falls from the roof top.
As Buffy leaves, the Mayor shows up. He is frantic about Faith. He orders his minions to find Faith.
Giles & Xander are researching at the library for ascension information. Cordy walks in and chastises them about ostracizing Wesley. They tell her Buffy quit the council and Xander asks if she'd like to help them out.
At the mansion, Willow takes care of Angel and he thinks she is Buffy. He caresses her and she quickly tells him that she's Willow. He is embarrassed. Willow goes outside to talk to Oz and Buffy comes in. She says there's no Faith and asks Oz & Willow to leave. They do.
Buffy goes in and tells Angel that there is no Faith. He says it's all right; he's ready to die. Buffy offers herself to him. He refuses. She punches him repeatedly and he gets angry. He puts on his game face and drains her in anger. Once he pulls himself away; he rushes her to the hospital.
At the hospital, he demands that they help her and they try. He goes to call Giles. At the same time, the Mayor has brought Faith in and they tell him that she is in a coma and will most likely never wake up. He becomes very angry and finds Buffy in her room. He reaches over her and covers her mouth. She begins to struggle, and a nurse tries to stop him. Angel comes in and pummels him.
The gang arrives and Angel tries to tell them what happened. Giles becomes very angry with him and tells him to leave. Angel refuses. Giles reminds him that the sun will be coming up. He walks away and Xander makes some comments.
Buffy has a dream; and in it she is in Faith's apartment. They have a heart to heart. Faith tells her the key to defeating the mayor is to use his human weakness. She tells Buffy to use anything of Faith's that she wants. Buffy wakes up from her dream and goes over to Faith's cubicle. She lightly kisses her on the head and gets dressed. She goes out to the gang and tells them she's ready to fight.
They go to the library and Angel comes over. Buffy tells Xander that she needs him and he is the key. They all prepare. Cordy & Wesley are packing books and they have a little goodbye thing. They suddenly kiss. It is really funny and icky. He is so off: hoover technique to the max.
The gang enlists the help of Larry & Jonathan to get explosive devices. Willow & Oz share another sexual moment in his van (they are afraid the world will end)
Graduation begins. The mayor begins to give his speech and Willow and Oz come in. He goes into a whole thing about this being a big day and how everyone is ascending. An eclipse happens. He ascends to a big icky demon thing. (snake-like) Buffy shouts out to everyone and they all pull out harpoons and flame throwers. Xander commands them like an army and they all do their weapons. (my Xander-pride: he saves the day!!!! Second only to Buffy)
A group of vampires comes up behind them and Angel leads an attack. The entire graduating class storms the vamps. The Mayor/demon flips Larry, and a vampire feeds on Harmony. Snyder starts hollering and the Mayor/demon eats him. Wesley is hurt badly. The whole Scooby Gang takes on vamps.
Meanwhile, Buffy yells at the Mayor/demon about Faith. He chases her through the school and she leads him to the library. Buffy runs through the exit and Giles pushes a lever thingy. The entire school blows up. The mayor is vamoose.
Wesley is loaded onto a stretcher and Buffy walks with Xander. She is looking around frantically. He tells her gently that Angel got through the battle. (B/X moment!!!) Xander knows this is a delicate moment and leaves her. Giles comes up and gives her her diploma. He tells her she did wonderfully. (Giles/Buffy Dad/daughter moment!) He leaves her. Buffy looks through the fog and sees Angel. They exchange a painful look and he walks off.
The whole gang gathers in front of the school and revel in the fact that they have finally graduated from high school. They all walk off. The shot ends on a Sunnydale 99 yearbook.