The undercurrents on the Cangliao coast are turbulent, and a huge drug trafficking network is hidden in the corners of the city. Jiang Ji, who has always been cold and taciturn and clean in his actions, has taken root in the front line with his partner Shen Yue, who has a gentle, transparent and thoughtful personality.
The two met in the police academy and went through numerous dangerous cases side by side. They went undercover, faced the hail of bullets, and put their lives in the hands of each other several times. Suspicion and danger ensue, and the darkness continues to pull and separate the two.
The road ahead is full of abyss, and colleagues around him are injured and sacrificed one after another. They are not only the most tacit comrades in handling cases, but also the only spiritual support in desperate situations. In the boundless abyss of sin, the two are bound to each other and redeem each other. They stick to justice with pride and wait for the spring breeze that blows away the haze.