Presented with new behind the scenes content. 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 their home and the world beyond.

Presented with new behind the scenes content. The group adjusts to the reality of life beyond their community's walls. Iris attempts to take charge, in spite of Hope's reservations. Felix and Huck trail the teens.

Presented with new behind the scenes content. Burdened by their pasts, members of the group adopt opposing strategies for dealing with a massive obstacle. Pressure is put on the group to return home.

Presented with new behind the scenes content. The group seeks shelter from a storm inside an abandoned high school. While resupplying, they imagine what high school life was once like and encounter new threats both living and dead.

Presented with new behind the scenes content. While the group works together to cross the Mississippi River, a plot to steer the teens back home hits a snag. A member of the group must overcome past trauma to save the others.

Presented with new behind the scenes content. When an unexpected newcomer reveals information that could help them reach their destination, the group cuts a deal. While some are intrigued by the new arrival, others are suspicious.