With a new life living in a community inside a baseball park, the Clarks go out in search of a young girl's missing family and find a lone survivor. Nick struggles over his past trauma.
After the S.W.A.T. van crashes the two groups form an uneasy alliance to find a way to get it back on the road, while Nick and Morgan learn how far they can -- or cannot -- trust one another when Nick sets out on a quest for revenge.
The group opens up to Al about their past, revealing a fateful supply run that went in three different directions -- and ended with three people considering leaving the stadium settlement. John Dorie makes a discovery.
Madison and Strand learn more about Naomi's tragic past when she accompanies them on a run in search of seeds to plant new crops. In the present, a stand-off with the Vultures leads to a stunning revelation.
When Charlie appeals to the stadium group for help Madison decides to bring an injured Mel inside their gates, aware that it could be another of the Vultures' ploys. In the present day, Al agrees to take a group back to the stadium to try and save John Dorie's life.
With Alicia and her friends in pursuit, Naomi and Morgan risk their lives inside the stadium to try and save John Dorie's life. Madison encounters Al on the road, hoping for some sign of hope for being reunited with her loved ones.
Morgan announces his intentions to return to Virginia and tries to convince the rattled group to go with him. Strand settles in to new comforts, while Alicia goes searching for a survivor.
Morgan seeks shelter from the storm inside the back of a semi-truck loaded with supplies, only to find himself hundreds of miles east with some new acquaintances and a choice to make: whether to continue home to Virginia or return to Texas for his friends.
Low on fuel and supplies following the storm, Al and June are forced to leave the S.W.A.T. van behind and search for help. Elsewhere Morgan searches for his friends, with his reluctant new allies in tow.
Dorie tries to make an escape after he and Strand find themselves marooned in the wake of the storm. Luciana comes to the aid of someone in need, and Morgan and the others discover that they have a new adversary on the road.
After a psychotic break at mile marker 54 Martha begins her quest to kill those trying to help others. Morgan, June, and the others scramble for refuge following a devastating attack on the semi truck, while Alicia tries to fulfill a promise to Charlie.
While Alicia and Charlie attempt to rescue the castaways, Morgan and June lead the other survivors in a desperate move to escape the roof of a hospital filled with the dead.
After Al runs afoul of Martha in her attempt to escape the hospital, Morgan determines to try and save the enemy from herself. But all hope may be lost when the group begins to fall ill.
