Poltergeist: The Legacy Season 3 Episode 22 Darkside

A mysterious White haired lady narrates this clip show meant to be a season ending cliff hanger. Foes from episodes_4-18 past show up once again as examples of how the team's good work hasn't managed to overcome the evil that follows. Their work is hidden behind self righteous acts of hypocrisy the Lady claims as she urges one of the team members to join them...and at the end it seems she's succeeded...but for how long??