Episode 147 of "Charmed"
s07e13 Charmageddon
Title: Charmageddon
Original Air Date: 01/09/2005 on WB
Director: John T. Kretchmer
Writer: Henry Alonso Myers
Guest Stars: Max Perlich (Laygan), Tawny Rene Hamilton (Wife), Tom Virtue (Angry Man), Kerr Smith (Kyle Brody), Jordan Murphy (Patron #1), Alex Avant (Car Driver), Laura Kelly (Patron #2), Jeremy Kent Jackson (Minion), Gina Montesinos (Van Driver), Reggie Jordan (Cop), Jason Simmons (Wyatt Matthew Halliwell [uncredited])
Plot Outline:
Leo discovers that the Charmed Ones' conflict-free world comes with a higher price than anticipated, so he must join Zankou to stop the Avatars and reverse the change.