Iris welcomes an enigmatic ally to their community while Hope questions the visitor's motives. A message upends the sisters' worldview, forcing them to decide between the safety of their home and the uncertainty of the world beyond.

Overwhelmed by the past, group members adopt opposite strategies to deal with a huge obstacle. Pressure on the group to return home.

Members of the group put a dangerous plan into motion, while others have serious reservations as more startling revelations come to light.

As the group searches for answers, some struggle to find common ground while others question who can be trusted. A shocking message sets a new mission into motion.