Still Charmed & Kicking

 "The season finale episode ""Still Charmed & Kicking"" opens with the Halliwell sisters successfully faking their deaths and living under new identities to live a normal life. However, this freedom is quickly put to the test.

While Piper and Phoebe try to make the most of their lives without magic, Paige feels restless and is driven by destiny. At the same time, the emergence of Billie Jenkins - a young, passionate but reckless witch - causes a stir in the magical world.

When Billie is endangered by a demon who wants to bring the ""Wizards"" into the light, the sisters realize they cannot run away from their responsibility. They are forced to save her.

Eventually, they come to a compromise: they will continue to live hidden from the world, but will secretly train Billie and continue their mission of protecting the innocent. The episode laid the groundwork for the entire final season: a struggle between personal desire and an inescapable destiny."