While Darklighters threaten to steal true love
magic made a wish go wrong:
Where two are, once was one --
but two does not mean twice as strong.

Too much work and no time for play have made Piper a major stress case. When a seemingly harmless wish comes true, creating two Pipers, it looks like the problem's solved. Two Pipers can do twice as much work, leaving one Piper to party the night away and the other to finally have time to relax. While one Piper's home baking, the other can give an interview. Two Pipers? Too perfect.

But soon it becomes clear that two heads -- and bodies -- aren't always better than one. When Darklighters kidnap Leo and hold him hostage in exchange for the Charmed Ones' powers, one of the Pipers doesn't even seem to care. And then both Pipers' powers fade, leaving them useless and sick. Phoebe and Paige scramble to find a reversal spell, but without Leo's help, and with Piper split in two, will the Power of Three become powerless?