Buffy the Vampire Slayer

New Moon Rising (4x19)

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Tara and Willow's relationship seems to be progressing when Oz returns to town. Through his travels Oz has found a combination of charms, potions and meditation that allows him to avoid turning into a werewolf. When Oz discovers that Willow and Tara are more than friends he loses control and as a werewolf chases Tara.