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.
The group adjusts to the reality of life beyond the walls of their community. Iris tries to take over, despite Hope's reservations. Felix and Huck follow the teenagers, while Felix is forced to face unwanted memories.
While the group is looking for something to advance their search, one of them remembers their struggles in the early days of the apocalypse. A game of truth or challenge brings emotions to the surface.