The next day, in the detention room of the patrol room, Tao Kun suddenly became seriously ill and was taken away by a group of mysterious people on the way to the hospital. Qi, who was treated in the hospital, was almost taken away by the same group. The corps commander found out that there were others at the scene when Tao's wife was killed, and analyzed that Tao Kun's smuggling case was behind the scenes. At the same time, Tao Kun escaped from the mysterious man and was chased by the house patrol and the black hand behind the scenes.
Hong and Kang Huasheng took them back to Tao Kun's home for psychotherapy, but they were chased by a group of Japanese ronins. Kang Huasheng was desperate to save him. At the same time, Tao Kun was eager to find his son and found his own home. Tao Kun helped Kang Huasheng beat off the Japanese ronin and knocked Kang Huasheng out. Hong Xiaoya and Ricky returned to the police station safely. Prompted by Hong, the police found a strange red pill in Tao Kun's house, which was identified by forensic doctor Yu He as a semi-finished product of a new drug "Red Pill" which is extremely addictive and harmful. Zhong Lang discovered that it was the Japanese who traded with Tao Kun, trying to buy the exact formula of the new drug "Red Pill" in Tao Kun's hand. Once this drug is successfully tested, it will seriously harm the people of China if it enters the society.
Zhong Lang found out that Tao Kun's medicine formula was originally obtained from a British expert, but out of instinctive patriotism, Tao Kun didn't give it to the Japanese at the last minute. Tao Kun's behavior indirectly led to the death of the British expert. Yu found clues during the autopsy, and Zhong Lang followed the clues to find Tao Kun.
Tao Kunsheng, who is at the end of the road, expressed his willingness to "cooperate" with Zhong Lang. Kang Huasheng was ordered to pretend to be a drug maker and sneak into the lair of the boss behind the scenes. Zhong Lang led people to cooperate with Kang Hua and successfully destroyed the drug-making factory. Boss Qian is employed by the Japanese Golden Snake Society. Seeing failure, he committed suicide by taking poison. The trace of Zhong Lang's visit to the Japanese spy organization Golden Snake Society was broken.
However, the crisis has not been completely lifted. Tao Kun took advantage of the chaos to sneak back, took Hong hostage and took his son Qi. Zhong Lang came to the rescue. Hong thought of countermeasures, because at this time, Qi's memory has been restored, and the "murderer" who killed Tao's wife turned out to be Qi. It turns out that Qi stole his father's gun to protect his mother and used it to scare the money boss's men. Unexpectedly, the pistol went off and killed my mother by mistake. Tao Kun took the fall for his son. Under Hong's psychological offensive, Tao Kun is eager to love his son, unwilling to let his son go with him again, willing to confess, and sincerely hope that Qi can grow up healthily.