Rick,
Michonne,
Daryl, and Oscar head toward Woodbury to rescue
Glenn and
Maggie from
The Governor. While they are gone, a group of five survivors—siblings
Tyreese Williams (
Chad L. Coleman) and
Sasha Williams (
Sonequa Martin-Green), and
Allen (Daniel Thomas May) and Donna (Cherie Dvorak) with their son
Ben (Tyler Chase)—come across the prison while fleeing a horde of walkers, and discover a breach in its fence. They make their way inside, Donna having been bitten by a walker in her right arm. Their cries for help are heard by
Carl, who helps lead them to a safe area of the prison. Donna succumbs to the bite, and after a brief moment of silence, Tyreese smashes her head with a hammer to prevent her re-animating. Carl keeps the newcomers locked in a commons area for safekeeping; Tyreese understands and accepts. In Woodbury, Rick's group sneaks into a building while at the same time, Glenn and Maggie attempt to escape. The Governor orders
Merle and his men to execute them, but as they approach, Maggie stabs one of the men with a sharpened bone, enabling them to slip by. Rick and the others launch their ambush, enabling them to bring Glenn and Maggie to safety; however, Michonne slips away on her own. As they see to Glenn and Maggie while avoiding detection, Glenn reveals to Daryl that his brother Merle is here, and Daryl insists that they go find him. Meanwhile, aware that their attackers include friends of
Andrea, The Governor gives his men shoot-to-kill orders, and keeps Andrea away from the action by enforcing the town's curfew. Michonne makes her way into The Governor's house and discovers a hidden room where he has kept the heads of many former allies, re-animated as walkers, in aquarium tanks, as well as the turned body of his daughter Penny (Kylie Szymanski) chained up. As she is studying the room, The Governor arrives, and despite his pleas to not harm Penny, Michonne kills her. Enraged, the two quickly engage in combat. After smashing the aquariums, Michonne uses a glass shard to stab The Governor in the right eye, but before she can kill him, Andrea arrives and stops Michonne, who turns and flees the building. Andrea races to help bring The Governor to Dr. Stevens to treat his injured right eye. Rick's group prepares to fight their way out of Woodbury, using
smoke bombs to cover their escape. Daryl stays back to cover the others, while Rick is momentarily confused by a man whom he mistakes to be his former ally—
Shane Walsh. Oscar is shot and killed as the others scale the Woodbury wall, and Daryl is captured. Rick, Maggie (after shooting Oscar in the head to prevent reanimation), and Glenn regroup with Michonne, who has been waiting for them, and they question if she is still useful to them. In the Woodbury arena, The Governor addresses the town's citizens, declaring that they were attacked by "terrorists". He then accuses Merle of betraying the people of Woodbury and has his men drag Daryl into the arena as proof of Merle's complicity; the residents start chanting for their blood. Stunned, Andrea stares at Daryl as the bloodthirsty townspeople cheer. ==Production==