Joel confesses to his brother, Tommy, his responsibility in preventing the Fireflies attempting to develop a cure for the Cordyceps fungus pandemic by saving Ellie from an operation that would have killed her. Four years later, Joel and Ellie have built a life in Jackson, Wyoming, though their relationship has become strained. While on patrol, Joel and Tommy rescue a stranger, Abby , from an Infected horde. They return to an outpost used as a temporary hideout by Abby's group
