Society's collapse would wipe out most of what we take for granted, but one substance that isn't so easily erased is the spirit of a teenage girl. The much anticipated "Left Behind" episode of "The Last of Us" demonstrates this by providing a peek into Ellie's past, and a fateful 24 hours buzzing with adolescent intensity that begins with her squaring off with a bully and ends with her losing her best friend Riley (Storm Reid).
