Why 'The Last of Us' and other apocalypse stories move us

In "The Last of Us," the world ends over the course of the weekend. During that time, Joel kills a neighbor, watches his daughter die and nearly takes his own life -- but ultimately, he survives for more than 20 years after that fungus-induced apocalyptic event. The violent tendencies he stifled throughout his pre-apocalyptic life keep him alive when the world as he knows it ends.