After Yu Ping'an was released from prison, he continued to pursue the truth behind his parents' murder. He worked step by step in the arena, teaming up with Zhao Xuanxuan, Erlu and others to bring down Gao Defa and Tao Ge, designed to shut down the Jiahua Neptune Casino, and finally forced out the mastermind behind the scenes. However, Lao Hei was hit and killed before the truth could be revealed, and the clue pointed to Yu Ping'an's brother Yu Dahu. The truth gradually emerged. Yu Ping'an's life experience was related to the Liu family, one of the four major families in the world, and a bigger conspiracy was waiting for him.