Witches can't run away from their legacy, at least not the Halliwell sisters -- Prue (Shannen Doherty), Piper (Holly Marie Combs) and Phoebe (Alyssa Milano).
The Charmed Ones must protect the muses from a warlock who is trapping them into a magical ring and using their inspiration to make the Forces of Evil more powerful.
S4E8 42 min