While mourning the death of their sister Prue, Phoebe and Piper learn of the existence of half-sister Paige. Abandoned at birth and raised by adoptive parents Paige had always felt that there was something different about her, that somehow she didn't quite belong. Could this all be about to change? Could Paige be the one to complete the Power of Three once again? Reluctantly, at first, Paige joins the remaining Halliwell sisters and together they help harness the power in the battle against evil. Now the reconstructed trio must attempt to overcome their pain and learn to deal with their new places in the reformulated family.