Three years ago, Deng Qingshan, a talented young man from Nanling Martial Arts School, was framed as a "traitor of the sect" due to a conspiracy in a black boxing match, and he embarked on the road to exile. He kept his name anonymously and fought in underground boxing arenas in Southeast Asia, relying on a pair of iron fists to fight his way out, but he was always burdened with the stigma of a "traitor". Three years later, he returned to China and joined the emerging MMA mixed martial arts league with the mysterious "Martial Arts Echo" golden finger - which can briefly predict the opponent's movements during combat and copy his moves. He just wanted to clear his grievances, but he didn't know that the man behind the frame-up for him was the elder of the "Dragon and Tiger Gate" who now controls the lifeline of domestic fighting events. Deng Qingshan played all the way from the city competition to the national finals, and met Lin Xiaoman, a female reporter with a vicious tongue. The two went from disliking each other to sharing life and death, and staged scenes of happy enemies inside and outside the ring. As he fought stronger and stronger, the truth of that year gradually emerged: behind that black boxing match, there was a huge conspiracy of Longhumen colluding with overseas capital and manipulating sports betting. Deng Qingshan not only wants to box, but also wants to seek justice for all the warriors who have been trampled on!