After they vanquished Cole, the Charmed sisters concentrate on Phoebe's baby, which a nightmare-vision tells her will be taken by the Seer after birth, and already demonstrates frighteningly strong powers. In hell, the Seer has Dane's coronation as new Source delayed for a day, claiming the throne for Cole's baby, who should rule Evil immediately, with her as regent. SFPD Detective Darryl Morris must officially investigate Cole's humanly inexplicable disappearance. The Seer promises freedom from the magical cage she built for him in the Source's dungeon to a giant demon, whose body is a portal to other dimensions, if he helps her catch a Charmed one...
—KGF Vissers