Inspector Totsugawa and Detective Kamei challenge the mystery of serial murder that originated in the burning and sinking of a huge tanker in the Indian Ocean. The story is a large-scale development where the stage moves from the Indian Ocean to Brazil, Ikaho Onsen, and Sendai. Eventually, a former captain of a tanker, who seems to hold the key to the case, appears on the investigation line. When Totsugawa notices the plan of the former captain, the existence of a huge evil that shakes the political and business world becomes clear. Watari Tetsuya plays Okudaira, a former tanker captain who is an important figure in the story. Watase agreed with Watase's wish to help with the 50th commemorative work, and the brothers co-starred.
