Jenny McCarthy, Melody Perkins, and Jennifer Sky guest star as the Stillman sisters, a trio of trampish bleach-blonde witches. Envious of the Charmed Ones, the Stillmans steal the girls' identities and powers. Whitelighter Chris (Drew Fuller) is now convinced that the Stillmans are actually Piper (Holly Marie Combs), Phoebe (Alyssa Milano), and Paige (Rose McGowan) -- and if he doesn't learn the truth soon, there will be serious long-range consequences. In separate developments, Phoebe is still having difficulty reigning in her empath powers, especially when her lover, Jason (Eric Dane), is concerned; and Piper tries to get baby son Wyatt to bond with his Whitelighter father, Leo (Brian Krause). ~ Hal Erickson, Rovi