And now, Secrets of Harridge House presents the conclusion of a special 3-part episode...” It’s 1986. Josiah’s three sons are grown and married. Josiah and Greta continue their research into mind control and genetic mutations, but things go awry as Deborah Ramden returns. She’s been through the doorway to another dimension, and she wants Josiah to join her in that other realm. They square off in the mine in a battle for good and evil... but who will win?