Leo turns the sisters into Greek goddesses so they will be able to vanquish mythic giants Piper's life is turned upside down when Leo accepts the call to become leader of the Elders.
As Piper goes into labor, evildoers plot to carry the baby off to their kingdom. Cheryl Ladd guest stars.
The sisters' nightmares spring to life, and they can escape only by unveiling the symbolic meaning of their dreams.
Witch doctors lead the sisters astray using voodoo dolls Paige abducts her ex-boyfriend's fiancee Phoebe poses for a magazine centerfold Piper nearly dismantles the house when she becomes an obsessive cleaner.
Trying to win Phoebe in a twisted way, Cole casts a spell that alters reality, eliminating Paige and destroying the Power of Three.
Cole kidnaps Phoebe and sends a shape-shifter in her place to manipulate Paige and Piper into giving him ownership of the manor.
A demon mummifies Phoebe's body to hold the spirit of his dead lover, Isis.
Cole attacks the Charmed Ones hoping that they will vanquish him forever Paige is charged with the protection of a man who turns out to be the father she never knew.
Phoebe opens a portal by repeatedly saving the life of her new boyfriend a warlock steals the Book of Shadows and uses it to kill two of the Charmed Ones.
When the Charmed Ones decide to help a mermaid who needs a proclamation of love from her mortal boyfriend, they botch a spell and turn Phoebe into a mermaid.
The Angel of Destiny offers the sisters a chance to relinquish their powers and lead normal lives as a reward for vanquishing the Source of All Evil.
As Phoebe's unborn child shows signs of demonic powers, the Seer (Debbi Morgan) plots to steal the baby and bring it to term.
When queen-to-be Phoebe rejoins her sisters to save an innocent, the denizens of the Underworld threaten a coup unless the witch proves her dark allegiance by killing Piper and Paige.
Piper and Paige help a wizard (Armin Shimerman) stop the coronation of a new Source, unaware that Cole is the new leader of the Underworld.
A vampire queen (Elizabeth Gracen) orders minions to convert Paige in order to shift the balance of power before trying to unseat Cole as ruler of the Underworld.
After six decades of searching, two wrathful wraiths who fought alongside Leo during World War II track him down to exact revenge.
Paige feels out of place among her happily married older sisters and their spouses, plus she becomes convinced Cole is a demon.
Phoebe, Paige and Piper battle warlocks who are using muses for evil purposes an insecure Cole loses his cool when Phoebe turns down his marriage proposal.
While mulling over his marriage proposal, Phoebe comes face-to-face with proof of Cole's demonic past in the shape of a vengeful widow.
Phoebe and Paige must prevent a deluded Piper from giving up their powers after she lands in a mental institution.