Ji Zheng, the captain of a navy survey ship, was once the captain of the Dongjiang base survey ship. During a mission, a shipwreck occurred, resulting in the death of the wife and female engineer of the old comrade-in-arms (). Farmer Mei Degui's wife was sent to the hospital in the city during childbirth, and the child died. Facing his dying wife, Mei Degui took away the daughter of Zheng's entrusted wife Xu, but failed to save her life. When he wanted to return the child, he couldn't find Xu. Because of his inner fear, he took the child back to his rural hometown and named it Mei (He Miao). Lu Huaicheng brought the boat back and learned that his wife had sacrificed her daughter's loss. Soon, Ji Zheng was transferred to his hometown. Three years later, while searching for Lu Huaicheng's lost daughter, Ji Zheng adopted Zheng Xiuzhu, an orphan, and died soon. 10 years later, Ji Zheng's son Zheng Yuanhai (Jia Yiping) joined the army and came to Dongjiang Naval Base after graduating from college in order to strengthen his father's desire to build a strong navy. A group of college graduates from local colleges joined the navy with reverence for the navy and great ambition to defend the sea area. Lu Huai, who has been promoted to chief of staff of the base, strengthened the military quality of these cadet officers, arranged for them to be trained in the Marine Corps Brigade, and appointed Chen Jianjun (Lu Jianmin), a pilot of the 295 ship who had worked in the Marine Corps, as the captain. Commander Chen (Gao Ming)' s son is very strict and trains student officials like a devil. The intensive training made some students unbearable and the two sides clashed. Yu Jidong felt that there was a big gap between life and ideals in the military camp, and he left the military camp despite Zheng Yuanhai's dissuasion. Since then, several college students who have left school have started completely different life trajectories. During the training, Zheng Yuanhai met Qin Siting (Fu Chong), a female soldier, and they became good friends. Qin Siting visited her home and happened to meet Yu Jidong, who admired Qin Siting's beauty and gradually fell in love with her. But Qin Siting secretly fell in love with Zheng Yuanhai. Lu Huaicheng didn't realize that Zheng Yuanhai was the son of Ji Zheng and praised his talent. In order to change Zheng Yuanhai's arrogant personality, he was unexpectedly arranged to feed pigs in a pig farm. Zheng Yuanhai flew into a rage and went to Chen Jianjun Theory to punish him. He was reprimanded by Chen Jianjun, and then went to work in a pig farm. Soon after, he was sent to the deep mountains to protect the communication lines of the exercise because of the abuse of pig and his breeder Jiang. On the mountain, Zheng Yuanhai met Mei, a girl who was herding sheep in the countryside, and encouraged her to enter the military school. Zheng Yuanhai met a thief while maintaining the line. After a contest of wisdom and perseverance, he finally caught the thief and ensured the safety of the exercise communication. Under the arrangement of Lu Huaicheng, Zheng Yuanhai entered the postgraduate class of the Naval Academy, and Chen Jianjun was also sent to the deputy class of the Naval Academy to study. Before the Gulf War, Zheng Yuanhai predicted that the American army would win with his keen insight, which was ridiculed by teachers, but appreciated by the dean. Facts have proved that Zheng Yuanhai is correct. During his internship as a captain at sea, Zheng Yuanhai was severely punished because a command error caused the training ship to hit a small fishing boat. Yu Jidong, who has become the chairman of Huadi Company, found the owner of the fishing boat and paid a large sum of compensation. The dean was generous in training talents, so Zheng Yuanhai was able to stay in school to continue his studies. Chen Jianjun was promoted to vice captain, and Zheng Yuanhai became a sailor after graduation. Because of their different ideas, they gradually came into conflict in their work. Zheng Yuanhai also paid the price again because of his reckless personality, which almost caused the warship to hit the rocks in the No.8 sea area. Fortunately, Chen Jianjun avoided the accident with his rich experience. Zheng Yuanhai finally stayed and matured. Lu Huaicheng resisted the pressure and sent him to study in France. Mei Degui told Mei Xinger a secret. In order to treat my mother, my family owed a debt to the Zhuzi family, which has not been paid off for many years. In desperation, May Xinger promised to marry Zhuzi when she grew up. Mei Xinger strongly disagreed, but the post was entangled. Mei studied hard and was finally admitted to the Military Medical University, and became good friends with her classmate Qin Siting. In order to help Mei get rid of the entanglement of the pillar, Qin Siting found Yu Jidong who had been chasing him, and Yu Jidong helped Mei pay back the money. Soon, Qin Siting and Mei both came to work in Dongjiang Base Hospital after graduation. Lu Huaicheng passed May Xinger in the hospital, but vaguely felt that there seemed to be some inseparable emotion between him and May Xinger. Zheng Yuanhai returned from studying abroad and grew up to be a frigate captain a few years later. At this point, Chen Jianjun has become a destroyer captain with good military and political quality in the base. However, the impact of the old and new ideas finally broke out strongly in both. Qin Siting loves Zheng Yuanhai strongly, while Zheng Yuanhai loves Mei Xinger. In order to strengthen personnel training, Lu Huai sent Zheng Yuanhai to France National Defense University to study. Chen Jianjun was promoted to captain of destroyer, and Zheng Yuanhai was appointed captain of frigate after returning home. A modern new command ship made in China is about to be installed. In the choice of captain, Zheng Yuanhai became Chen Jianjun's biggest competitor. In the military action against the submarine W, Chen Jianjun deliberately concealed its military information out of selfishness, which led to the submarine W escaping. Zheng Yuanhai resolutely led the ship to pursue and mistakenly entered the No.8 sea area, causing the warship to hit the rocks and be damaged. The superior accident investigation team decided to transfer Zheng Yuanhai. Lu Huaicheng knew for a long time that Zheng Yuanhai was the son of old comrade Ji Zheng. After a fierce ideological struggle about family ties and military law, he signed the report. Facing Zheng Yuanhai, Chen Jianjun felt guilty and finally stepped forward, accepted the responsibility and returned to the original place. Mei Xinger thanked Qin Siting for his help and knew that Qin Siting loved Zheng Yuanhai deeply and left quietly. Yu Jidong fell in love with Mei Xinger after his confession to Qin Siting was rejected. Soon, Yu Jidong's company had a financial crisis and was involved in a major cultural relics smuggling case. Zheng Xiuzhu went through a lot of hardships and finally got the clue that Mei Xinger was Lu Huaicheng's own daughter. Just as the mystery was about to be revealed, she was in a car accident and fell into a deep coma. Mei degui is seriously ill. In order to raise the operation fee for her adoptive father, Mei had no choice but to accept the huge subsidy from Yu Jidong, the chairman of Vantage Company, but fell into a huge trap. Mei Xinger, who knew that Qin Siting was suffering for Zheng Yuanhai, was finally forced to make a decision to marry Yu Jidong. Just when Jidong urged her to sign up, she gave an order to exercise and Mei went to sea as a medical staff. Qin Siting gave Zheng Yuanhai the money left by his father to pay for Mei's expenses, and then transferred back to work with his mother. Chen Jianjun, who has been the captain of the anti-smuggling ship brigade, exposed the shady situation of Huadi Company, and Yu Jidong was punished by law. Lu Huaicheng resisted the pressure and appointed Zheng Yuanhai, a graduate student with dual educational background, as the flagship captain of the new naval destroyer. Xu was diagnosed with a terminal illness. In order not to drag down her son Zheng Yuanhai, fearing that her daughter would be left unattended, she decided to die with her daughter. Zheng Yuanhai's mother died after returning from training at sea, but Zheng Xiuzhu miraculously woke up with the help of traditional Chinese medicine. Lu Huaicheng met his own daughter Mei Xinger, and Lu Huaicheng was in tears. Fishing boats in China are threatened by ships of unknown nationality. Just when the fishermen were desperate, Zheng Yuanhai arrived with a destroyer, and the fishermen cried with tears, long live the motherland! Long live the Navy of China! Lu Huaicheng back out, MeiXingEr accompanied to send Zheng Yuanhai. Under the leadership of Zheng Yuanhai's flagship, the task force disappeared on the horizon, leaving a track that will never disappear. ...