In 2013, a disaster struck the world. A fungus called Cordyceps broke out around the world and human society fell apart.
In the country on the other side of the ocean, FEDRA (Federal Disaster Response Agency) gradually usurped supreme power during prevention and control, overthrew its staff, and implemented high-pressure autocracy. There was also a wave of resistance to FEDRA across the United States.
People have been searching for more than 20 years in the apocalypse, and finally saw hope in a girl who was miraculously immune. But to get the vaccine, people had to sacrifice her.
Joel, the smuggler who escorted her to the hospital, could not bear to die after going through the journey with her across the United States, and finally stopped Firefly's actions, completely extinguishing this glimmer of hope.
Years later, when they were living in the small town of Jackson, Wyoming, a group of uninvited guests from Seattle suddenly arrived, and the bullets fired in the past finally caught up with them.
