In charmed what episode does Chris reveal to Phoebe and Paige that he is their nephew?

In "Charmed," Chris reveals to Phoebe and Paige that he is their nephew in Season 6, Episode 22, titled "It's a Bad, Bad, Bad, Bad World: Part 1." This revelation is significant as it connects him to the Halliwell family and adds depth to his character's storyline. The episode features various twists and turns, culminating in this pivotal moment.