The Charmed Ones, with Bille's help, must come up with a plan to save her once they switch her into Pipers' jail cell and discover the truth.

Consequently, they intervene first to prevent her murder and then taking inspiration from none other than the Demon of Fear, Barbas—conceive a plot to have the District Attorney implicate himself on tape in the murder, freeing his ex-lover from the threat of retribution.

Each girl’s powers grow as the season’s progress and at some point one or all of the girls are tempted to quit being “The Charmed Ones.” However, knowing now the evil that is out there, in the form of demons, warlocks, and even the source of all evil, every one of them comes back to the Halliwell manor to keep fighting for the good in the world.

From the heartbreaks of being a witch and having to keep secrets from the men in their lives, to telling the men they loved their secrets and being accepted or rebuffed because of them, the sisters always stood strong and saved the world by relying on “The Power Of Three.” Reeling from the deaths of their respective sisters, Piper, Billie and a returned Leo enlist Coop's help to go back in time and prevent all the misguided bloodshed.

This forces Billie to realize just what her sister had truly become.

The future versions of Chris and Wyatt also make a helpful appearance.

The eighth and final season of Charmed, an American supernatural drama television series created by Constance M.

Paige has trouble locating her charge, and when she finally catches up with the young witch, she finds that Billie has embarked on a solo vigilante career to do good and combat demons, but soon finds she has gotten in over her head.

Paige takes up a career as a police recruit, hoping fighting evil that way will fulfil her needs, but has to leave training to rescue Billie.

Paramount Home Entertainment released the complete final season in a six-disc box set on September 11, 2007.

The final season premieres after being presumed dead by the outside world, the sisters cast a spell so that their appearance is altered to the outside world, but not to those closest to them.

Consequently, Paige takes training as a police recruit, hoping to satisfy her continuing need to fight evil while Phoebe and Piper masquerade as cousins of themselves and humorously end up in positions with the paper and at the P3 club doing pretty much what they had done before faking their deaths.