Witchstock

After trying on a pair of her Grams go-go boots, Paige finds herself transported back in time to an era of free love and free magic; and discovers Grams, a peace-loving hippie, who is on a crusade to rid the world of evil through the magical power of love, preparing for a "magical be-in" at the manor. Piper and Phoebe travel back in time to prevent Paige from changing the past and to make sure that Grams lives out her destiny to carry on the Charmed Ones's line. Meanwhile, Leo, Chris and the spirit of Grams fight to vanquish the Creeper, a slime-like blob that has surrounded the manor.