Alexandria deals with the fallout from the town meeting, as Rick and Morgan get reacquainted with each other since they last met. It's not long before they discover a looming threat that needs to be dealt with as soon as possible, but won't come without risks.
The safety of Alexandria is compromised by something other than walkers when it's invaded by a marauding band of survivors known as the Wolves. As they waste no time in butchering the people, Carol and Morgan lead a fight back, but come into conflict over their methods.
The groups tries to keep the half of the herd that broke off from reaching Alexandria. As Rick splits off, Michonne and Glenn try to get the others back to Alexandria, but are hounded by walkers and faced with the possibility that some won't make it.
Morgan recounts how he was transformed from an unstable murderer to a man of peace.
Still recovering from the Wolves attack, Alexandria finds itself now surrounded by a horde of walkers. As everyone struggles to cope with their future, Maggie attempts to venture out in an effort to find Glenn.
On their way back to Alexandria, Daryl, Sasha, and Abraham get caught in an attack. Daryl winds up being separated from Sasha and Abraham and is captured by a trio of people running from the people who attacked him.
Glenn finds Enid and tries to take them both back to Alexandria. Meanwhile, those behind the walls begin thinking of ways to get out, as things begin to boil to the surface.
With part of the wall down, walkers begin flooding into Alexandria. Everyone takes shelter in the homes, leading to several confrontations.