As Terpsichore and Dan try to save their rocky relationship, Lucifer and the members of his satanic realm intensify their efforts into bringing the special mortal into their flock. While Calypso continues her quest to convert Calliope to the dark side, Chanteuse slowly draws Dan into her web of lust. Will the forces of good prevail, or will the legions of evil seduce Dan and Calliope in choosing the wrong side?