S1, E18: A captive Nora is tortured and left for dead. Although Monroe learns of Rachael's attempt to reach the Tower, he's unaware of her deadly plan for him. Meanwhile, Miles is desperate to find out how so many of his close associates are being brutally murdered. Later, Miles, Charlie, Neville, Jason, Hudson and John Sanborn (guest star LELAND ORSER) struggle to make it out of the Plains Nation to join Rachel and save her from what they believe to be certain death.