What begins as a pe aceful v enture into ci vilian life for a pair of mi litary ve ts, quickly de volves into c haos when a  nuclear cri sis brings d anger to thei r doorste p, ignitin g an unexp ected allia nce with a potential enemy, a s they  struggle to protect the ir team and overcom e the shadows o f their  past in a lawless ne w world.！