
20 years later Joel lives in the Boston quarantine zone, which is under strict control of the Federal Agency for Disaster Management, and together with his girlfriend Tess tries to get a car battery to go in search of his brother in another state. Fate brings him together with a wounded rebel leader who promises a car and a battery if Joel and Tess will deliver the wayward 14-year-old orphan Ellie to a squad of battle buddies waiting for her outside the quarantine zone.