Piper organizes an engagement party for Paige and Henry, but the wedding is put in jeopardy when the couple begins to get cold feet. Phoebe notices a strange man following her, and soon discovers that he is a Cupid. Meanwhile, a demon kidnaps Christy in order to lure the Charmed Ones into attacking the Triad, thus preventing them from taking over the Underworld. In a battle with the Triad at Magic School, Paige and Piper vanquish one by orbing him in front of a fireball and Piper blows up the second. The third runs, but unlike how they expected, Leo is not returned, showing that the Triad is not the big threat that they have to face to get him back.