After going undercover at PADRE, Morgan and Madison find themselves back at odds trying to do what's best for Mo while struggling to accept their new lives under the watchful eye of PADRE.

Mo's hunt to prove PADRE's true intentions has her in over her head as she's drawn into the larger web of secrets and subterfuge of the adults who care for her.

Morgan's return to King County gets complicated when PADRE comes to collect.

The heroes fight the clock and PADRE's forces.

Morgan fights his past as he and Madison race to stop PADRE's expansion.

Strand fights to maintain the peace of his new life after the sudden arrival of an old friend threatens it with ghosts of the past.

The search for gas leads to an unexpected reunion that Madison uses as an opportunity.

Dwight and Sherry confront the demons of their past to secure a better future for themselves.

A survivor is at odds with the rest of the island and is forced to turn to another for help.

The horde led by Troy surrounds the walls of PADRE. Madison and her people must fight for their survival to save what remains.

As the series comes to an end, the fate of PADRE's survivors seems to rest in the hands of an unexpected hero.