After a bomb panic that occurred in the 1960s, the Webber family was trapped in an underground air raid shelter for 35 years.Now, Adam has stepped out of the closed world for the first time, entered the abandoned and strange Los Angeles, and shouldered the heavy responsibility of finding food and survival supplies for his family.At the same time, he also has a deeper desire to find a wife who does not belong to the mutant group and rebuild their true human family.