The Walking Dead: Dead City is the latest film and TV project to explore a post-apocalyptic New York. The series takes place in Manhattan, which has been isolated from the rest of society since the zombie outbreak. But when a villain known as "the Croat" kidnaps Hershel from Hilltop, Maggie is forced to chase him to Manhattan in order to get her son back.

After the Croat is revealed as a former Savior, she reluctantly asks Negan for help.

Negan brokers a deal with Maggie: he'll help her search for Hershel if she allows Ginny—the young girl he's trying to protect—to stay behind at Hilltop. Each having a personal stake in the story, they venture to Manhattan, where they not only have to battle against the Croat and his henchmen, but also evade a marshal who's pursuing Negan on murder charges.

The series gives both Maggie and Negan a young person depending on them to survive, but the changes don't stop there.