Star Wars: The Clone Wars

Witches of the Mist (3x14)

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The path to evil may bring great power, but not loyalty. Anakin and Obi-Wan, sent to track down the mysterious figure behind the deaths of several Jedi, soon find themselves on the trail of the monstrous apprentice that Ventress has created: Savage Opress. However, Dooku and Ventress also discover that this new apprentice has a will of his own...