Christy, Phoebe and Billie are at a cafe. Christy eats a large piece of chicken with her hands, to the disgust of other patrons, and ends up setting it on fire. As Phoebe leaves, she bumps into a strange man, but doesn't notice until Billie points this out. Two cops, or so it seems, come to the manor. They act strangely, telling Piper that there are "beings" she thought were dealt with that are now back. Christy uses her telepathy and lets Piper know the cops are really demons. The shorter of the two cops warns the girls The Triad has returned. Christy vanquishes the taller demon and the other demon fades out.
The man from the cafe comes to Phoebe's apartment. Oddly, his key is able to open her door. He claims to live in the unit below Phoebe's. Phoebe is suspicious. Shortly after, a demon in a Triad robe shimmers in and takes Christy. Christy is now in the hands of Xar, but the Charmed Ones are after the Triad. Piper thinks that there may be an attempt on the sisters' lives.
Phoebe breaks into the strange man's apartment and sees that no one lives there. she goes back to her room and finds him there. He surprises her, and she tries to attack him, but he flashes a large ring, freezes Phoebe, and deflects her into a chair. He says he's a Cupid, and invites her to call him Coop. He says the Elders sent him to help her find love.
Billie repeatedly tries the To Call a Lost Witch spell to retrieve Christy but in vain. Christy burns away the bindings on her hands and burns up one of the demons holding her prisoner. She's about to vanquish Xar as well, when Billie's spell at last summons her. Christy summons the Triad in the conservatory and warns them that someone is impersonating them. The Triad suspects Xar, and vanquish him.
Billie has tracked the Triad to Magic School and the Charmed Ones orb there. Phoebe draws their fire, and with a fireball in flight, Piper freezes the room. Paige orbs one of the Triad members into the path of the fireball, and he is destroyed. Piper blows up a second one, and the third shimmers to the Underworld. Leo, however, is not returned, to Piper's disappointment.
The surviving Triad member appears to Christy and tells her she must now act alone, to unite with the Ultimate Power.
At what was to be their engagement party, Paige and Henry marry.