Chris is attacked by a spider demon and is infected by venom that alters his personality and causes him to aid the demon in her quest to capture and devour Piper.
Piper (Holly Marie Combs) is kidnapped and cocooned by the Spider Demon, a creature that emerges every hundred years to feed off a powerful magical being. During the attack, Chris is infected with the Demon's venom, causing him to mutate into a spider. Paige calls for help from her forest friends from the forest as she, Phoebe and Leo try to rescue Piper and Chris. Meanwhile, Leo finally learns why Chris resents him.
Leo learns that Chris is his son in this episode.
The sisters go before a magic tribunal to save the life of Det. Morris after the Cleaners cover up evidence of magical activity by making it appear that the cop killed a suspect in cold blood.
When Phoebe, Paige, Leo, and Gideon orb into the Black Limbo, Gideon is the only one who doesn't react to the dark surroundings. Gideon warns the sisters that the death of Darryl may not be as bad as the outcome of the Tribunal can be. When the Tribunal will first appear, we will only see their heads. Leo knows about Piper's pregnancy. It is unknown though if he knows it's Chris. Paige is surprised to see that Chris and Leo speak to one another. Barbas had been vanquished to the fires of hell but was granted temporary leave to act as the sisters' opposing council. Gideon will act as the sisters' council. Past events will be reviewed.