What's in the box?

About The Walking Dead: The Prison – Board Game, from BoardGameGeek:

The Walking Dead: The Prison – Board Game is a standalone sequel to the original The Walking Dead: The Board Game, published by Z-Man Games. Covering the events of issues 13-24 of the comic book series, players must fight their way through the Prison, securing areas and killing zombies to collect leadership points. The player who has collected the most leadership points once a certain number of rooms have been secured (depending on the number of players) becomes the leader of the survivors and wins!