Dead Rising: Watchtower is an adaptation of a famous videogame. In the movie The Rise of the Dead: Watch Tower, as in the video game, we see a society in which the zombies are the bosses, because an infection has made them more infected than humans.
A group of people are trying to investigate the origin of the infection, because they believe that it is the only way to find a cure and to live in peace, as they lived before people became zombies.
When they begin the research and they are advancing, the results that they obtain are surprising. Apparently, the infection has been caused by the United States government, which for some obscure reason, is interested in the existence of zombies.
In this way, we will see what the group of people who are investigating with this information so delicate, that can make people rise up against the government and many dead people.