| Season 4 Episode Guide |
| 4.01-02 Charmed Again Parts 1&2 |
| Phoebe and Piper struggle to come to terms with the loss of Prue and the realization that the Power of Three no longer exists without her. When they discover the existence of their baby half-sister, Paige, Piper and Phoebe are hopeful that they can reconstitute the formidable trio of witches.But now, The Source has a mythological two-day window during which he can turn Paige evil forever. |
| 4.03 Hell Hath No Fury |
| New to the witchly world of The Charmed Ones, Paige is learning to control her new telekinetic powers and steals the Book of Shadows from Piper and Phoebe to use the spells for personal gain. Meanwhile, Piper's inability to deal with Prue's most recent death makes her vulnerable to the Furies, female demon vigilantes who lure her into the fold. |
| 4.05 Size Matters |
| Piper and Phoebe don't take Paige seriously when she has a feeling about a creepy old house, landing Phoebe in the cluthes of a hideous demon and shrun to a powerless five inches tall. When Paige and Piper also walk into the demon's trap, his collection is complete. |
| 4.04 Enter The Demon |
| Paige makes a major blunder when carelessly mixing potions for Piper while secretly wishing she could be in Phoebe's shoes training for combat, and ends up actually switching bodies with Phoebe. While the two sisters try to reverse the spell and struggle to harness each other's powers, they must battle a Zen Master's powerful dicipline who has turned evil against his mentor and opened up a portal between two worlds. |
| 4.06 A Knight To Remember |
| Paige's favorite childhood fairy tale suddenly becomes real, bringing her face to face with one of her past lives as an Evil Enchantress from Medieval times and into the arms of a Knight in Shining Armor. Piper and Phoebe go back in time and end up trapped in the dark ages. |
| 4.07 Brain Drain |
| Phoebe and Paige must work quickly before Piper is tricked into giving up all of their powers when The Source taps into her brain, altering her perception of reality and into a mental institution. |
| 4.08 Black As Cole |
| In the midst of mulling over his marriage proposal, Phoebe come face to face with Cole's demonic past when a widow tracks him down seeking vengeance for her husband's murder. Meanwhile, Paige encourages Piper and Leo to test their readiness to become parents. |
| 4.09 Muse To My Ears |
| Piper, Phoebe, and Paige must stop warlocks who are enslaving the world's muses to use their divine creative inspiration for evil. In the midst of the assault, Cole becomes testy about Phoebe's rebuffing his marriage proposal and is concerned that without his demonic powers he can no longer protect the love of his life. |
| 4.10 A Paige From The Past |
| Paige is haunted by guilt about her parents' tragic death and blames it all on her rebellious youth, so Leo takes her back in time to relive the events leading up to the car accident. Meanwhile, Phoebe and Cole experience a haunting of their own when outlaw ghosts from the 1950s possess their bodies and head to the chapel to get hitched. |
| 4.11 Trial By Magic |
| While serving on a murder trial, Phoebe has a premonition that reveals that the defendant is innocent despite the overwhelming evidence against him. As she desperately stalls in the jury room, Piper, Paige, and Leo frantically try to discover the real killer in time to free the wrongly accused man. |
| 4.12 Lost And Bound |
| When Paige discovers that a 10-year old runaway is a firestarter, she whisks him to the manor for safekeeping, but the gang soon discovers that his foster parents are, in fact, demon bounty hunters, so they protect him while trying to teach to use his powers for good, and not for evil. |
| 4.13 Charmed And Dangerous |
| Learning that he is fated to be vanquished by The Charmed Ones, The Source taps into the ultimate power of The Hollow, which consumes all magical powers, both good and evil. As he goes after The Charmed Ones' powers one by one, the lives of both Leo and Cole hang in balance. |
| 4.14 The Three Faces Of Phoebe |
| Phoebe gets premarital cold feet and casts a spell to figure out if she should marry Cole, which conjures up a young, innocent Phoebe and an old, cynical Phoebe to the manor to help her make up her mind. meanwhile, Cole is unable to control the evil growing within him as The Source takes over his entire being and the Seer prepares for his rule in the underworld. |
| 4.15 Marry-Go-Round |
| Phoebe is hoping that everything will be perfect for her and Cole's wedding, but doesn't know The Source has completely taken over the groom and is sabotaging the ceremony in order to orchestrate a demonic wedding which will allow their foretold son to be heir to the underworld. |
| 4.16 The Fifth Halliwheel |
| Paige is feelong out of place among her happily married sisters. The situation gets worse when she becomes convinced Cole is still a demon, while he secretly tries to impregnate Phoebe with his evil spawn. |
| 4.17 Saving Private Leo |
| After 60 years of searching, two ghosts who fought with Leo in World War II come after Leo seeking revenge for old wounds. When they turn this wrath on his loved ones and kill Piper, Phoebe and Paige face the horror of losing another sister. |
| 4.18 Bite Me |
| With hopes of unseating Cole as the ruler of the underworld, a Vampire Queen orders her charges to attack Paige and turn her into a vampire, like them, to get a Charmed One on their side. Paige's undead transformation isn't complete until she takes her first victim, and the Vampire Queen urges her to feed on her two sisters. |
| 4.19 We're Off To See The Wizard |
| Piper and Paige team up with a magical Wizard to stop the coronation of a new Source, not realizing that the new head of the underworld is Cole and Phoebe is his Evil Queen-To-Be. |
| 4.20 Long Live The Queen |
| Phoebe has chosen to stay with Cole and take on the role as Queen of the Unnderworld, but a premonition of an innocent in danger compels her to rejoin her sisters. Word spreads the Phoebe is responsible for saving an innocent and she and Cole may be facing a bloody coup, with the only solution to prove their dark allegiance being to kill Piper and Paige. |
| 4.21 Womb Raider |
| As Phoebe's unborn bundle of joy starts showing signs of fierce demonic powers and a violent hatred of Paige, The Seer plans to steal Phoebe's baby and magically place it in her own body, thereby gaining the power bestowed upon the heir of The Source. |
| 4.22 Witch Way Now |
| The Charmed Ones are visited by The Angel of Destiny who offers them to chart a new destiny as a reward for vanquishing The Source of All Evil; the sisters can remain Charmed, or choose to relinquish their magic and live normal, demon-free lives. |