Amongst newlyweds, Phoebe & Cole and already-married, Leo & Piper, Paige begins like a fifth-wheel but she continues her suspicions about Cole. Meanwhile, the Source plots to impregnate Phoebe with his evil spawn.

The sisters must face Hecate, a powerful demon goddess, who is preying upon a woman, her son & his fiancee, and attempting to conceive a full demon child.

A troubled teenage girl befriends Phoebe with the hopes of joining the Halliwells, but she's been lured to the dark powers of witchcraft by a sorceress. Meanwhile, Prue tries to find some alone time with Andy and Phoebe and Piper vie for the attention of Leo.

Acting on Phoebe's premonitions, the sisters race to stop a mysterious killer from striking again. Meanwhile, Prue finds a truth spell and uses it to find out what Andy's reaction to her being a witch would be.

Paige accidentally summons a medieval knight, who believes Paige is the love of his life. However, the knight is under the influence of an evil sorceress.

Prue finds her sleep disturbed by strange visions in which she's taunted by a man. Meanwhile Phoebe and Piper cast a spell to attract men, but it turns out too strong, and they can barely escape their myriad of admirers.

When Phoebe's ex-boyfriend comes to town he brings trouble in the form of a stolen Egyptian urn which carries a mortal curse. Meanwhile, Prue tries to save the auction house from bankruptcy, and Piper's witchcraft backfires.

While attempting to take over the Underworld, a young demon plots to lure the Charmed Ones out of hiding, but when Billie stumbles onto his plot ,she becomes one of his victims instead.

Prue attempts to help a young man, who desires to become a priest in order to avoid fulfilling his destiny as a warlock of the Evil Charmed Ones. Meanwhile, Phoebe tries to get Piper to stop shying away from a date with Josh.

Piper, Phoebe and Paige come to the aid of Mylie, a Mermaid-turned-human, when she shows up looking for their help after a pact she made with an evil Sea Hag begins to go drastically wrong. Meanwhile, Phoebe attempts to divorce Cole, until he shows up claiming to want her back, Paige, attempts to juggle her new position as a full fledged Social Worker, as well as being a Charmed One, and Piper must protect her unborn baby, and face her fear of water.

When Phoebe must constantly save the life of her new boyfriend, a warlock shows up from the future, claiming that future Cole sent him in order to kill the boyfriend before Phoebe's dies instead. However, present Cole cannot allow this and tries to help the sisters protect Miles, but when the warlock decides to work on his own agenda, by stealing the Book of Shadows, it results in the death of two of the Halliwell sisters. The survivor must decide whether going back to change the past is the right thing to do.

Prue helps a young witch who has been kidnapped, and renews her own faith in having children. Meanwhile, Phoebe finds out that Leo is hiding an important secret that threatens his relationship with Piper.

When a demon attacks and kills one of the three nympths that protect a lake, the Charmed ones try to help. However, once the demon is destroyed, the nypmphs decide Paige should replace the fallen nymph, and they won't take no for an answer.

In order to get close to baby Wyatt, the Crone steals one of the senses from each of The Charmed Ones, in an attempt to fool the child.

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. Meanwhile, Piper and Leo are on the hunt for a band to play at P3; and Paige meets a handsome man, who happens to be her new charge's parole officer.

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. Meanwhile, Piper attempts to continue her life without Leo; Paige tries to make a connection with Henry; Phoebe tries to find a way to have her own life.

Three sisters reunite after the death of their beloved grandmother, and learn they have inherited much more than the family manor.

With Piper growing more concerned that Leo will never return, Prue and Phoebe try to save a little girl and a fairy princess from evil Trolls. When Prue and Phoebe need Piper's help, her concern with Leo causes a spell to backfire, placing the girl in danger.

On Halloween, the sisters are pulled back in time to the 1600's to save a witch and her soon-to-be-born child from the hands of an evil witch who wants to raise the child evil. The sisters later discover that this situation may have more personal implications than they first imagined.

When Prue discovers that her ex-boyfriend is being led down the path to becoming a demon, the sisters must risk their lives in an underworld wrestling ring to save his soul.

Piper, Phoebe and Paige are shrunk to a height of five inches when they walk into a trap set by a demon named Gamil.

Jason breaks up with Phoebe when he finally learns her and her sisters are really witches. Meanwhile, Richard attempts to free himself of his family's karma, and Piper and Paige try to vanquish a group of Swarm Demons, the last on Chris' list of the most significant threats to Wyatt.

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". Meanwhile, Billie becomes infected with the virus and it's up to the sisters to find an antidote.

The sisters' father returns after a 20 year absence, and the new neighbors aren't what they seem.

After Prue's former crush, Bane, is broken out of jail, he seeks her help for defeating a powerful demon by... kidnapping her. Meanwhile, Phoebe tries to help Piper choose between Dan and Leo by casting a spell, but the results are rather unexpected.