Adapted from first-hand information recorded by American journalist Jake Adelstein on various events within the Tokyo Metropolitan Police Agency's jurisdiction, the second season, still filmed on-site in Tokyo, will lead the audience further into the underworld of the city. Jack Adelstein (played by Ansel Elgort) gradually realizes that his own and those around him are in terrible danger.

改編自美國記者Jake Adelstein對東京警視廳轄區內各事件所記錄的第一手資料，依舊在東京實地拍攝的第二季將帶領觀眾繼續深入這座城市的黑社會世界，Jack Adelstein（安塞爾·艾爾高特Ansel Elgort飾）逐漸意識到自己和身邊人的性命正處於可怕的危險之中。