On the edge of the town of Lincoln, Massachusetts, lies a corner that the world has forgotten.There, Bill, a persistent survivalist, was already prepared for unknown disasters.His underground fortress is like Noah's Ark in the apocalypse, stocked with supplies needed for life. Every brick and tile testifies to his persistence and persistence in survival.

In 2003, when the disaster swept through like a storm, Bill held on to his fortress during the evacuation of the military and waited for the storm to subside.When the town returned to tranquility again, people had already evacuated, but Bill enjoyed this rare tranquility alone.He built a fence and laid traps around the town, like a king ruling his own lonely kingdom.

However, the days of loneliness are always difficult.It was not until four years later that a survivor named Frank escaped from the occupied Baltimore quarantine area and arrived at Bill's door.Although reluctant, Bill shared his food and clothing and established an initial bond with Frank.As time went by, Frank not only saw Bill's loneliness, but also established a deep emotional bond with him during their relationship, and the two eventually developed into a couple.

During the three years of living together in the small town, Frank always had a longing for the outside world.Finally, he met Joel and Tess from Boston over the radio.Although the four were in different places, they established a deep friendship and exchanged daily necessities and news from the outside world via radio.

One day, a group of robbers tried to invade the town and destroyed Bill's fence.Bill had to turn to Joel for reinforcements.During their ten long years together, Bill and Joel faced many challenges together, and their friendship became deeper and deeper.

But life is always full of variables.Frank is terminally ill and knows his days are numbered.He hoped that Bill could help him achieve euthanasia, but Bill believed that they should cherish their last moments and spend the rest of their lives together.So, on a quiet night, the two jointly chose to overdose and ended their lives in their sleep.

Soon after, Joel and Ellie came to the town, and they learned of their death in the letter left by Bill.In the letter, Bill hoped that Joel could find a new calling like himself and left everything in the house to him.Carrying Bill's last wish, Joel and Ellie drove the truck left by Bill and embarked on a new journey.