5 second plot: The boy that got sick and died AND turned into a zombie starts biting people. A big panic breaks out, lots of people die and the zombie killing musketeers need to step in and save the day. Even Rick pitches in. Other people start feeling sick (like the boy). That can't be good.
5 second review: Lots of gore, some chills, some thrills and everybody is losing it. What's not to love?