Piper and Leo use the ring to travel back in time to change the events that lead to the deaths of Phoebe and Paige. When Piper focuses on going back in time to Phoebe, she and Leo instead end up in 1975, when Phoebe was conceived and her parents were still together. Without giving away too much information, Piper tells her parents that she and Leo are from the future and that they travelled back in time to save Phoebe and Paige from death. Her mother Patty (Finola Hughes) insists on helping them out and tells Piper to form a three-generation Power of Three with her and Grams (Jennifer Rhodes). When Piper focuses on going back in time to Grams, they instead end up 50 years in the future, to the old aged Piper and Leo, where she is the Grams. They then travel to 1982 when Grams was comforting a 10-year-old Piper. Patty did not know she was dead at that time, and after Grams faints upon seeing her, Piper is forced to tell her.