Prue and Phoebe take on demons who protect murderers with the payment of innocent souls while Piper and Leo visit The Powers That Be. Phoebe meets and falls for DA Cole Turner. Phoebe and Piper gain new powers.
A couple separated by a curse that turns the man into an owl during the day and the woman into a wolf during the night seek the Halliwell's help. Prue makes wedding plans for Piper and Leo.
Piper fear for Leo's safety endangers a girl the sisters are trying to save from trolls.
The sisters spend their Halloween in the 1600's trying to keep a child from being raised by an evil witch.
Prue frets over the threat of the Triad and Belthazor. When the house is robbed, it turns out that the criminal behind the actual is actually a mortal.
Cole tries to break up with Phoebe. Prue takes on empathic powers when a spell cast to save an empath reveals that he is actually a very powerful warlock.
When a warlock that can change anger into rage causes the sisters to use their powers against one another, they leave themselves powerless and open to attack.
The Halliwells learn that Cole is Belthazor and vice versa, leaving Phoebe in a very awkward position.
Piper's trip down memory lane, in the form of her high school reunion, is broken up when she's possessed by an evil spirit.
The sisters try to stop a child-abducting ice cream van, but after getting involved learn that the children are evil and the ice cream man is trying to stop them. The sisters get some help from their father.
A warlock seeks to end all Whitelighters by using the powers of witches.
An old flame of Prue's is killing people with his supernatural powers and Prue tries to free him from the control of an evil witch.
A warlock tries to steal the Halliwell powers by getting Prue to unknowingly marry him. The warlock's co-conspirator, however, decides to cast a spell to make the sisters turn evil in her own effort for supreme power.
Phoebe is linked to the pain of an injured American-Indian from the Old West and Prue and Cole travel back to save both the man and her sister from death.
Piper and Leo's wedding day arrives and the big hastle they face is a wild-spirited Prue.
Prue has to come to grips with her mother's (and ultimately her own) death when she is able to see and speak with the Angel of Death.
The sisters deal with Piper's upcoming departure and reflect back to a time before their powers with their gram. A witch's cat gains it's humanity by sacrificing it's witch and seeks to become a powerful warlock by losing his nine lives at the hands of the Halliwells.
A demon causes the sisters and Leo to each take on the traits of one of the seven deadly sins.
Cole uses his Balthazar identity to gain access to an underworld group, The Brotherhood of the Thorn, but once inside, the Halliwells fear he may not stay on the side of the angels.
A higher up demon seeks to use Cole as a means of undoing the Halliwell sisters. Piper discovers new ways to use her magic.
Prue is transformed into a dog, Phoebe is transformed into a banshee and it's up to Piper to fix it all before the changes become permanent.
After being outed as witches on television, the Halliwells pact with the Source in order to regain their anonymity, but with the ultimate cost being one of their own.