為了與犯罪組織古萊姆（クライム）對抗,國際科學特搜隊的鯨井大助決定組織一隊改造人部隊，最後他找到接受手術的四人，分別是：櫻井五郎、東竜、嘉琳·水木（カレン水木）及大地文太。四人背負著改造人失去肉體的痛苦，與古萊姆周旋。

後來因古萊姆引入了侵略機械人，把目標由犯罪轉變成征服地球。因此皇牌突擊隊亦加入了行動隊長Big 1（ビッグワン），令戰況更加白熱化。

“昭和大叔”小川市郎因意外从1986年穿越到2024年的现代。市郎是中学的体育老师，同时也是棒球部的顾问，被称为“地狱的小川”，用词粗鲁，经常做出令和无法想象的“不合适”言行。另外，妻子因病去世，他也是在家对独生女的不良行为束手无策的普通父亲。对于合规意识低下的“昭和大叔”市郎来说，在令和总是会说出一些“不合适”的话。但市郎的这种极端观点，给了被规则束缚的令和人们思考的契机。

A story of Sato Hachiro, poet in the Showa period who is known for his lyric poems and songs for children. Despite the delicate and sensitive style of his works, he and his family spent a life full of ups and downs. Based on a novel by his half-sister Sato Aiko, the drama describes the thrilling life of the poet who played an important role in the popular culture of the Showa era by focusing on his love and hate relationship with his family. (Source: DramaWiki)

Beginning with the Meiji Restoration, modern Japan became a great power in Asia, but ended in the catastrophe of defeat. Writer Ryōtarō Shiba's recognition of this history has led him to tell the story of the Showa period before the madness of war, going back to the end of the Meiji-Bakumatsu periods, in a 12-part series.