The Grey Sisters Atlantis : Season 2 Episode 6
TV-PG (self-applied) BBC One 45m int(0)
Aired: December 20th, 2014 @ 8:15 PM EST on BBC One
As Ariadne lies on her deathbed, Jason embarks on a dangerous quest into the unknown. After a daring encounter with the ancient Grey Sisters, Jason's mission brings him face to face with Medea and Pasiphae once more.