The Charmed One's grandma Penny (Jennifer Rhodes) is invited to the Wiccaning ceremony for baby Chris. Fed up with the girls' noisy sibling rivalry, "Grams" casts a spell, transforming the trio into teenagers. This situation proves somewhat embarrassing when the younger version of Phoebe (Alyssa Milano) attends an award ceremony. Meanwhile, Leo (Brian Krause) tries to figure out the motivation behind an attack on little Wyatt by consulting a demonic seer (played in the first of several guest appearances by former Buffy the Vampire Slayer and Angel co-star Charisma Carpenter). ~ Hal Erickson, Rovi