Set in the late Qing Dynasty and early Republic of China, the story follows Liu Hengshun, a police officer in Tianjin with a mysterious past. After losing his parents in a fire, he masters a unique skill, earning the nickname “Fire God” for solving complex cases. While investigating strange crimes and battling the secretive Mogu Dao, Liu uncovers shocking truths about his origins.
In search of sensational material, the capital's journalist Tatyana Blok finds herself in the village. The reason for the shooting is large-scale: one morning in the village of Verkhnyye Brody (across the river from the Lower Ones), all the people disappeared. Twenty people at once. Money, documents, and all the livestock were left in place. Tatiana takes over the investigation. For her, this is a chance to prove that she was fired from television for nothing, and she is able to shoot high-quality investigative reports. But for this, Tatiana will have to learn how to live in the village, or rather, to survive in it.
Kawashima Toshio (Utsui Ken), an assistant professor at a university medical school and an excellent surgeon, becomes mayor after his father-in-law falls ill. The evil hand of organized crime, cleverly disguised, has begun to take hold in the city. Toshio, who has risen up to protect the citizens, is beset with family problems, including the mysterious departure of his beloved wife Yukiko (Hama Mie) from home and the resulting delinquency of his beloved daughter Mayumi (Saito Tomoko). Carrying this heavy burden, Toshio fights with the help of Nagai Masayuki (Kanda Masateru), a young newspaper reporter with whom he has a deep connection. However, in the midst of this struggle, an eerie truth about his missing wife's scandalous past and the shadow of a certain man begin to appear like a mirage...
Anna Pigeon is a former city slicker who became a park ranger after a devastating loss changed the trajectory of her life forever. While Anna tries to outrun her demons, her focus turns to solving crimes that have taken place within national park grounds, no matter who or what gets in her way.
Rebecca and Romain are finding it very difficult to become parents. So when Mickaël, Romain's brother, moves in just opposite and announces that he's about to become a father, the tension rises. Particularly as he appears to abuse his partner, who then disappears following an argument.