Rachel's haunting continues to get worse for her.
Gerald uses dark magic to bring back the only woman he loved.
All is not as it seems in a small New England town.
What secrets lie in the caves below Mt. Everest?
Erin and the man she rescued go up against sinister succubi.
Erin takes new recruit Josh out on a scavenging mission.
Six astronauts find more on Venus than they bargained for.