The Last of Us: Left Behind is a video game that follows Ellie, a teenage girl living in a post-apocalyptic world. After her best friend Riley disappears for weeks, she returns with a surprising revelation and the two sneak out of their military boarding school one last time. This leads to an adventure where they must face dangerous enemies, uncover secrets about each other's pasts and discover what it truly means to be alive. Along the way Ellie will have to make difficult decisions that could forever change not only her life but also Riley’s as well.