The Bronze is packed and Oz and the Dingoes are playing on stage. After a song wraps, Oz goes to stand by his friends and Willow and Xander act all jumpy. They discuss briefly the idea of Buffy and a new boyfriend, but Buffy lets them know she is seeing someone--Faith but just as friends. (jokingly) The two go out and slay, finally killing two vampires. A new woman, who later identifies herself as Mrs. Gwen Post-Faith's new watcher-doesn't appreciate the "sloppy" synchronized slaying.
That night, Gwen tells the Slayers and Giles that she was sent down to take over as Faith's watcher and report back on the entire situation in Sunnydale. She tells them about a demon that has come in search of a glove--Lagos--and that she wants both Slayers at full strength to kill it. Buffy then goes to the mansion with Angel where they're practicing Tai Chi. One thing leads to another and they end up very close to a kiss. Buffy mentions Lagos, then leaves, knowing she can't let them get so close again.
At the library, Giles frantically searching for information on the demon, and he's taking out his angers (caused by Gwen) out on Xander and Willow. The two are both very tired but go back to researching. Willow has a headache and Xander rubs her temples to help her relax. They kiss and are almost caught by Giles, but stop before he sees anything. Feeling guilty, Xander offers to go check out the tomb where this demon would most likely go.
Walking on the streets, Buffy and Faith talk about guys and Faith tries to get info about Buffy's relationship with Angel, but Buffy is still too confused about it all and doesn't want to talk. Faith offers to take a final sweep through one of the cemeteries while Buffy claims to go home, tired. Faith runs into the demon and gets beat up pretty bad, but she's okay since she's the Slayer. While looking through the cemetery, Xander sees Angel coming out of the mansion and going over to the garden (The mansion happens to be next to the cemetery.) After following, Xander finds Buffy and Angel in a passionate kiss which they later break and Buffy feels very bad about it. Angel shows her he has the glove that Lagos wants.
Giles and Mrs. Post are at Giles' home researching. Just as Giles starts to pour some tea, Xander runs to Giles and tells him about what he saw. The next day at school, Buffy's friends hold a sort of intervention for her after finding out about Angel's return. Everyone expresses their feelings, while Buffy does her best to defend her case. After everyone leaves, Giles reminds her of all the pain he's been put through and her lack of respect for him. Gwen visits Faith at her rundown apartment and after a brief lecture, they train.
Buffy confronts Willow about her situation, but finds that she's not mad at all--which has a lot to do with Willow and her own secret. Later that night at the library, Giles calls Mrs. Post to come in and he tells her that a friend of Buffy's is holding it until they can get there and destroy it. He tells her where the mansion is and then when he's not looking, she hits him over the head with a statue, knocking him out. Buffy asks Willow to accompany her to a night of slaying since no one else could be reached. They talk and Willow is just about to tell Buffy about her relationship with Xander when Lagos shows up. Buffy fights him, and kills him with his own weapon.
Meanwhile, Xander is playing pool at the Bronze when Faith shows up. He tells her about Angel's return and she decides that she should kill Angel before he has a chance to use the glove. They arrive at the library and get weapons, but just as they're leaving, Xander discovers Giles knocked out in his office. He calls 911 as Faith jumps the conclusion that Angel did it. She leaves and he stays with Giles--he's not convinced that Angel had anything to do with it. At the mansion, Angel has preformed the spell for the living flame and Gwen arrives, claiming to be a friend of Giles' wanting to help with the spell. Angel goes to get the glove, and she hits him over the head with a shove.
Buffy and Willow get back to the library to find the paramedics there, as they leave Giles tells her she has to destroy the glove with the living flame. Xander tells Buffy that Faith knows everything and she came to the conclusion that it was Angel that hurt Giles. Buffy rushes off to the mansion, asking Willow to find out how to destroy the glove. Back at the mansion, Angel gets up--game face on--and fights with Mrs. Post who just then finds out that he's a vampire. Faith arrives just in time to see that Angel's beating up on her Watcher and then they fight. Before Faith can stake Angel, Buffy stops her and tries to reason with her. After that doesn't work, the two Slayers start fighting. Buffy sends the two crashing through some French doors and they keep fighting. Willow and Xander get there and Xander unsuccessfully tries to break up the fight between the Slayers while Willow attempts to help Gwen. But Gwen hits her across the room then puts the glove on.
Everyone stops fighting in time to realize that Gwen is wearing the glove. Using the glove and the bolts of lighting that flow through it, she tries to kill Willow but Angel gets up and pushes her out of the way, just in time to save her from her death. Buffy asks Faith to distract Gwen while she finds a way to defeat her. Buffy throws a broken piece of glass and cuts off Gwen's arm. She blows up and the glove detaches itself from her arm. At school the next day, Oz and Cordy are filled in on the details of the fight. Everyone is cool with Buffy now, and they all trust her, except Cordelia. Buffy goes to Faith and tries to apologize and tell her she can trust her, but Faith has given up on trusting others. She says she doesn't need anyone else but herself.
