Ellie is a fourteen year-old girl who was born in the Boston quartantine zone after the pandemic that wiped out most of the human population in The Last of Us. Having no knowledge of the world before the pandemic, Ellie is used to the military oppression that the quarantine zone adheres to. Raised by her mother until her death, Ellie was taken in by the Firefly leader Marlene.
20 years after the pandemic, Joel and Tess encounter a wounded Marlene, leader of the resistance group known as the Fireflies, and decide to help smuggle Ellie out of the quarantine zone in return for their stolen supplies. With the Firflies and the military seeking her out, it soon becomes apparent that Ellie is more than she seems on the surface.
