Piper and Leo, with help from Coop's ring, must travel back in time to change the events that lead to the deaths of Piper's sisters and the manor's destruction.
Forced to hide from Billie and Christy, the Charmed Ones find themselves stuck in the Underworld.
In an attempt to destroy the reputation of the Charmed Ones, Billie & Christy resort to trying to make the magical community see that the Halliwells only care about themselves. Meanwhile, Phoebe begins to lust after Coop; Paige cannot hear her charges' call for help; Piper becomes the perfect 1950s housewife.
Piper and Phoebe devise a plan to recover Leo.
Coop comes to the conclusion that he has fallen for Phoebe but she'd rather spend her life with a mortal. Meanwhile, Piper is on the hunt for killer demons; Paige finds it hard balancing life as a Charmed One with that of a married woman.
After Paige and Henry leave for their honeymoon, Cupid "Coop" takes Phoebe on a journey through her past romances in an attempt to revive her excitement for love.
Piper organizes an engagement party for Paige and Henry, but the couple begin to get cold feet.
Paige learns the difficulties of dating a mortal when Henry becomes too involved in the magical world and is torn when another suitor arrives hoping to convince her to marry him so they can become the ultimate magical couple.
During Chinese New Year, a demon attempts to steal a mystical wooden staff, that's protected by the Zodiacs and they enlist the aid of Piper.
Phoebe, in an attempt to move on with her own life, signs a lease for a new apartment, and Paige considers moving in with Henry.
With the intention of helping his parolee get a loan, Henry, along with Paige, go to a bank but instead the parolee decides to take everyone at the bank hostage.
When her parents come for a visit, Billie accidently transforms them into assassins and also manages to contact a demon who is posing as a human.
The Angel of Death returns to visit the Charmed Ones but they're shocked to learn that he's there for Leo.
When a demon escapes from custody, Agent Murphy enlists the Charmed Ones to help, where they learn a government created virus is spreading amongst magical beings, that causes them to "hulk out".
Agent Murphy gives the sisters their first Homeland Security case, searching through cold case files, where Phoebe and Billie discover a belt that gives Billie superpowers.
Wanting to return to her old career as a social worker, Paige's plans get put on hold, when her Whitelighter father, Sam, returns asking for her help with his charge.
Charmed clip - starring Alyssa Milano, Holly Marie Combs, Shannen Doherty, Rose McGowan.
Season 4 brings big changes in the lives of the Halliwell sisters. As they face the loss of a sister, season 4 brings the arrival of Paige Matthews - half sister to the Halliwells. As Piper and Phoebe cope with the death of their sister, they learn to accept Paige and teach her the ways of witchcraft all while perfecting the use of their own growing powers.
The three Halliwell sisters discover that they are descendents of a line of female witches. Each has a special ability (stopping time, moving objects, seeing the future), and they can also combine their abilities into the "Power of Three" to fight demons, warlocks, and other evils.
The seventh season begins with the sisters questioning themselves after Gideon's betrayal. Phoebe is such an emotional wreck that her boss lets her take a break and hires a ghost writer--a man with whom she takes awhile to warm up to but eventually develops feelings for. Finally, darkness surrounds the sisters in the form Zankou, a demon who had been locked away by The Source.
In the 2nd season, the sisters continue to balance their personal lives with their magic as they begin to gain more control over their powers. The sisters also find themselves traveling to both the past and the future throughout the season, in addition to facing their own family history when they are forced to destroy the demon that was responsible for their mother's death.
In the final season the sisters have to live under false identities to be free of demons. Each sister remains unhappy and eventually decides to return to their Charmed lives. Paige, however, begins helping a young witch named Billie, who eventually discovers the sisters' magical secrets but agrees to keep them under wraps in exchange for witchcraft training.
The 3rd season of Charmed sees many dramatic changes in the sisters' lives. As Cole/Belthazor moves his way into The Charmed Ones' lives, he becomes conflicted between his duty toward The Triad and his love for Phoebe.
Season 5 ties up loose ends and brings in new characters. Piper deals with being a Charmed One while being pregnant. After the birth, and learning that she is the mother of a very important and powerful child, Piper must then face various demonic forces who intend to either kill or capture her son.
The 6th season focuses on new characters as well as The Charmed Ones. Leo leaves on a quest making life hard for Piper as a single mother to Wyatt. Chris travels back in time and we learn about his true connection to the Halliwells.
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