In a dark, enclosed space, Sasha struggles to maintain consciousness. Music echoes from her earbuds as she finally drifts off.
In a flashback, Sasha sleeps on a couch. Abraham wakes her and tells her that Maggie needs medical attention, and he’s accompanying Rick’s group on their trek to Hilltop to get her to a doctor. Sasha asks him to stay behind.
In the present, Negan brings a tray of food to Sasha’s cell. He assures her she doesn’t have to die that day but warns that someone from Rick’s group does. She asks him what he needs from her.
In another flashback, Sasha sits next to Maggie in a field.
In the Alexandria prison cell, Daryl slams Dwight against a wall and holds him at knifepoint. Dwight insists he’s on their side and warns the group that Negan will come to Alexandria the next day. Dwight presents his plan: He suggests they attack Negan and his crew while they’re in Alexandria. From there, Dwight can radio the Sanctuary and let them know everything is okay. The Saviors will be caught off guard when Rick and the group ride in, using the Saviors’ trucks. Once inside, they can rally the workers, take down the Saviors and destroy their other outposts.
Dwight heads back to the Sanctuary after Rick’s group agrees to his plan. Daryl vows to kill Dwight after the battle is over.
Sasha continues listening to music through her earbuds.
Continuing the same flashback from earlier, Sasha tells Abraham that she had a dream in which he died.
In the present, Negan tells Sasha how he plans to use her in his attack against Alexandria. He insists on executing three people, but Sasha bargains him down to one.
In the flashback, Sasha and Maggie continue to stare out at the field.
In the present, Maggie reviews Rick’s plan with Jesus and Enid. She considers their options and contemplates joining the fight at Alexandria.
Carol leads a regiment from the Kingdom toward Alexandria. They reach the blockade of shopping carts previously placed by Richard. Morgan appears and vows to hunt down the Saviors by himself, but Ezekiel convinces him to fight at their side.
The Scavengers arrive at Alexandria in a caravan of garbage trucks and bicycles. Rick greets Jadis inside the gate.
Daryl, Rosita and Aaron wire explosives in an empty cargo truck outside the Alexandria gate.
Meanwhile, Negan’s crew works to remove chopped down trees blocking the road, delaying their arrival at Alexandria. Eugene asks Negan’s permission to approach Rick and try to defuse the situation before resorting to battle.
Back at Alexandria, a Scavenger watches Tara as she helps set up a blockade outside the gate.
On a balcony, Michonne gives sniper instructions to Farron (a Scavenger), and hands her a sniper rifle. “We win,” Farron tells Michonne.
Sasha listens to music on her headphones. She struggles to keep her eyes open.
In the flashback, Sasha tells Abraham about her dream. They were at the beach, he went under water and never resurfaced. Abraham jokes that he hates the beach and gets up to leave for the Hilltop. Sasha again asks for them to sit this one out -- “Maggie’s gotta take care of Maggie,” she says.
Negan and the Saviors mobilize for their attack on Alexandria. At Sasha’s cell, Eugene speaks with Sasha about her change of heart regarding the “allergy medication” (the suicide pill). He assures her she’ll get used to life at the Sanctuary. “No, not like you,” she says.
In the flashback, Maggie and Sasha watch the sunrise.
A Scavenger alerts everyone in Alexandria to the Saviors’ arrival. Rick assumes his position at the front gate, with Jadis crouching by his feet, hidden from view. Negan’s caravan arrives. Eugene steps out and tries to convince Rick to surrender. Rick hesitates, stricken by Eugene’s betrayal, then gives Rosita the signal to detonate the explosives. Rosita pushes the detonator, but there is no explosion. Jadis leaps up and aims her gun at Rick. Simultaneously, the Scavengers turn their guns on the Alexandrians. Negan emerges from a truck. Saviors open the truck that holds the explosives.
Watching the situation unfold, Michonne tries to leave her balcony post to help Rick, but Farron stops her, holding her at gunpoint.
Negan’s men remove a coffin from their flatbed; he announces that Sasha is inside, alive and well. He offers to let her live if Rick turns over all their guns – and Daryl. Even then, Negan will still execute one Alexandrian of Rick’s choosing. Rick insists on seeing Sasha. Negan taps Lucille against the casket, knocking.
Sasha listens to music on her headphones. In the flashback, she and Abraham kiss. He reminds her that putting their lives on the line for others is what they do and that Maggie and her baby are the future. Sasha agrees, admitting guilt for her previous statement about Maggie. They leave for their doomed journey to the Hilltop.
As Negan’s group mobilizes to attack Alexandria, Sasha confirms with Eugene that it will take a couple of hours to reach their destination. Eugene gives her an iPod with headphones. Sasha tells Negan that she wants to travel to Alexandria in the casket so she can rest. She requests a bottle of water.
Inside the coffin, Sasha selects a song from the iPod. As music begins to play, she pops the suicide pill in her mouth and chases it with water.
In the present, Negan opens the casket door. Sasha, now a walker, lunges at him. Rick’s group takes advantage of the ensuing chaos and turns their guns on the Scavengers and Saviors. Michonne fights Farron on the balcony. Rosita is shot. Rick tries to join the fight, but Jadis holds him at gunpoint.
Walker Sasha tears into a Savior’s neck. Negan and Simon hide from gunfire behind a truck.
Rick attempts to make another deal with Jadis. She shoots him in the side and pushes him off the platform.
Farron brutally beats Michonne.
Jadis leads Rick to Negan and orders him to kneel beside Carl. She reminds Negan of their deal – twelve people in exchange for the Scavengers’ help in the attack. Negan bargains her down to 10.
Farron holds Michonne over the edge of the roof.
Rick and Carl look on in horror as a body plummets to the ground, from Michonne’s balcony post. Negan vows to kill Carl and cut off Rick’s hands as punishment for Rick’s collusion. Rick reiterates his pledge to kill Negan. As Negan prepares to strike Carl with Lucille, Shiva leaps out and mauls a nearby Savior. Carol and Ezekiel lead the Kingdom group in an attack, as Maggie arrives with the Hilltop fighters. Battle ensues, while Rick joins the fight.
The Scavengers release smoke bombs and escape in the haze. Negan and his men escape in a truck.
Rick and Carl find Farron’s dead body on the ground, where they expected to find Michonne. Rick discovers Michonne inside, badly beaten and barely conscious. He gently embraces her.
Back at the Sanctuary, Simon and Dwight inform Negan that preparations are underway for plan B. Negan asks Eugene how Sasha managed to die in the casket. Eugene surmises that she ran out of air. Negan looks doubtful.
Negan addresses his Saviors in the courtyard. “We are going to war,” he declares.
Maggie and Jesus track down Walker Sasha in the woods. Maggie cries as they kill Sasha.
In the graveyard, Gabriel presides over Sasha’s funeral.
Daryl finds one of Dwight’s wooden figurines hidden by the front gate. He sees the words, “Didn’t know,” written on the back.
In the infirmary, Tara sits by Rosita’s side, and Rick holds Michonne’s hand as she rests in bed.
In a flashback, Maggie and Sasha continue to sit in a field, watching the sunrise. They turn to each other and smile.
Rick, Maggie and Ezekiel stand on a podium and address the crowd as the leaders of their respective communities: Alexandria, the Hilltop and the Kingdom, united.