The story unfolds in the world where people attacked by zombies and those who are bitten become a zombie unless the function of brain is prevented by any external factors. Although you can find a lot of productions which focus on zombies, The Walking Dead features not only the fights against zombies of people but also the conflicts with other people.

While Rick Grimes, the main character of this TV series, who is a policeman has lost consciousness, the world changes completely. The zombies have already outnumbered people who have not bitten by zombies when he regains consciousness. Even though people have advantages on a one-on-one fight, as zombies generally move in a group it is impossible for a person to fight alone. Therefore, people must cooperate to survive in a devastated world with strangers. However, daily necessities are limited and some people plot to betray others as only themselves can survive. In the end, people value themselves most and most of them selfish. You can learn human psychology in a situation where people are driven into a corner.