Charmed (1998)

S5E18 Cat House

As Piper and Leo face difficulties in their marriage, Piper decides to cast a spell that lets them visually revisit their shared history. Unfortunately, things take an unexpected turn when Phoebe and Paige are transported back in time to experience Piper's memories. To complicate matters further, a warlock determined to eliminate the Charmed Ones joins them on this journey into the past.