The plot of Yangko TV series introduces the plot of Yangko.

1, 1936, Haiyang, Shandong. Wandering sea cats, living as beggars and fortune tellers, were mistakenly tied to Julong Island with the girl Wu Ruoyun. Eighteen years ago, the parents of the pirate leader Black Shark were killed by Ruoyun's father Wu Gankun, and now he wants revenge. This sea cat charmed the guards with sweat and took Wu Ruoyun away overnight. On the way, they happened to meet Wang Tiankai, an injured underground party member who was chased by the security team. The sea cat escaped into the deep mountain with Wang Tiankai on his back and saved it with rice and Chinese herbal medicine. The Wu family and Zhao family in Hutouwan town are enemies, and they have been fighting for the right to go to sea for many years because of "yangko". On the thirteenth day of the first month, the yangko was stirred by the sea cat, who came to find his biological parents. Hai Mao's mother, Zhao, is the sister of Zhao Hongsheng, the head of the Zhao family, and gave birth to Hai Mao with Wu Sheng, a parent worker of the Wu family. But the two ancestors of Wu and Zhao stipulated that marriage was not allowed, and children born of adultery must sink into the sea. In order to keep the sea cat alive, both parents committed suicide at Hutouya, but the sea cat still had to sink into the sea. Wu Ruoyun went to rescue the pirate black shark who had the same life experience as the sea cat. Zhao Xiangyue, the servant girl, dived into the water ahead of time because of his mistress Yu Mei, and saved the sea cat at a critical moment. The black shark made homage to the sea cat and asked him to return to Julong Island with himself. But the sea cat escaped. The sea cat went back to Hutou Bay for revenge, but mistakenly broke into Ruyun's boudoir. Wu Ruoyun took Hai Mao to Haiyang County to complain to his uncle. Jianghai Wu, the police chief, is Wu Gankun's half-brother, and the relationship between them is very tense. Wu Jianghai blackmailed Wu Gankun and Zhao Hongsheng through the case of Haimao's parents.

2. After the sea cat buried his parents, he stayed in Hutou Bay. During this period, his love with Wu Ruoyun and Zhao Xiangyue took root, and he also forged a deep friendship with Zhao Dazhao and Wu Tianwang, two coolies. Who knows, Wujiang Sea soon returned to Hutou Bay and asked the town to hand over a person. Wu Gankun and Zhao Hongsheng conspired to frame the sea cat. In order to get promoted, Jianghai Wu indiscriminately put the sea cat on death row. Wu Ruoyun and Zhao Xiangyue, who deeply love the sea cat, decided to be the "widow" of the sea cat at the same time. Wang Tiankai, who had just been sent to Haiyang by his superiors, was surprised to learn that the sea cat was sentenced to death and was about to be shot. He is busy organizing rescue. After careful planning, the sea cat was rescued from the muzzle of the security team. Wang Tiankai took him to the base area and sent him to join the revolutionary ranks.

3. A few years later, Hai Mao, the platoon leader of the investigation team, was ordered to return to Hutou Bay to find the whereabouts of a missing medicine ship. Just in time for Wu Ruoyun and Zhao Xiangyue to get married at the same time. The grooms are Wu Tianwang and Zhao Dazhao respectively. Seeing that the sea cat didn't die, the two brides escaped from marriage at the same time, but both were taken away by the black shark. In order to retrieve the medicine ship, the sea cat once again boarded Julong Island by saving people on the island. After many twists and turns, the sea cat learned that the ship was robbed by the "Snake Island" female bandits. The sea cat facilitated the marriage between the black shark and Zhu, the owner of Snake Island, and Zhu returned the boat. Under the arrangement of Wang Tiankai, Haimao returned to Hutouwan to build an anti-Japanese base area, which coincided with the Japanese devils coming to the town to watch Yangko. The sea cat took the opportunity to tease the Japanese aggressors and mobilize the people to resist Japan, but did not want to provoke the devils to wash Tiger Head Bay. Hai Mao mobilized the people to evacuate, saved Hutouwan town alone, led the devils to Snake Island, and killed the enemy with mines. The Japanese aggressors assembled more troops to level Hutou Bay. Just after visiting Wu Ruoyun, the sea cat plunged into War of Resistance against Japanese Aggression. Zhao Hongsheng, persuaded by Hai Mao, decided to cooperate with Hai Mao's actions to make up for it, and successfully passed San Pu's attack plan to Hai Mao. Qi Xin, the fourth team of the Eighth Route Army, joined forces to kill the Japanese army in Hutouwan. Jianghai Wu's sinful life ended in Wu Gankun's angry family style. The Eighth Route Army liberated Haiyang and set up a conscription office in Hutouwan. As a soldier, Zhao Dazhao touched Zhao Xiangyue with his true feelings. The two are getting married. Hai Mao, who wanted to fix them up, took the opportunity to ease the contradiction between Wu and Zhao, and specially organized a yangko. While everyone was immersed in joy, the sea cat was attacked by San Pu and stabbed in the chest. Two years later, San Pu, who found that the sea cat was not dead, planned to take revenge in Hutou Bay. In order to break down the defense force of Hutou Bay, San Pu decided to take the black shark first. Let's set a trap to distract the black shark and attack Snake Island with traitors and Japanese soldiers. In order to cover the sisters' retreat, pregnant Zhu was blown up by a Grenade. Hutou Bay lost its sea barrier, and San Pu began to implement the "Wolf Day" plan. He misled the sea cat with the action of dispatching troops and made him fall into the trap of attracting tigers out of the mountain. Before the sea cat left, he entrusted the yangko madman to send a message to Wu Gankun, asking Wu Gankun to guard the mountain road where the Taoist temple is located and not to save Hutou Bay. The yangko madman was turned over by an old pesticide dressed by San Pu on the way to deliver the letter, and the letter was turned away. After reading the letter, Wu Gankun took people to Hutou Bay in Huiyuan, and San Pu's team quietly followed, killing them together. Wu Gankun was mistaken for a spy. When the Wu family tried to enter Hutou Bay, the Zhao family fired.

4. Xiang Yue returned to Hutou Bay and judged that Wu Gankun was not a traitor. Wu and Zhao stubbornly resisted and suffered heavy casualties. Both Wu Gankun and Zhao Dazhao died heroically. Wu Gankun's death made Wu Ruoyun unable to let go. She listened to the rumors of He and promised to cooperate with them to assassinate Xu. At the moment when Wu Ruoyun lit the fuse, the sea cat rushed to her with the child in her arms, which explained the cause and effect of the incident and prevented a tragedy from happening. When everything in Hutou Bay was back on track, the sea cat packed up and ran to the battlefield.