A deadly plague has devastated Earth, killing all the adults. Lisa and her younger brother Todd are struggling to stay alive in a world where no one is safe. Other children along Grand Avenue need help as well. They band together to find food, shelter, and protection from dangerous gangs invading their neighborhood. When Tom Logan and his army start making threats, Lisa comes up with a plan and leads her group to a safer place. But how far is she willing to go to protect what's hers?