It tells the thrilling and humorous story of a reserve special forces unit that comes together not to protect the country or promote world peace but to safeguard their families and neighborhood.Choi Gang, who is an insurance investigator, was a member of the JDD special operations unit. He possesses an impressive physique, sharp insight, and an exceptional capacity for empathy.Kwak Byeong Nam, who is the owner of a hardware and stationery store, is a former member of the HID counterterrorism unit who was transferred to the maintenance battalion after suffering a knee injury during training. He has been the youth association president of Sangri-dong for 13 years and is in charge of recycling collection in the neighborhood.(Source: K-Drama Casting X)