Hongmei Hua Er opens a TV series to present the 60th anniversary of the establishment of diplomatic relations between China and Russia.

A Sino-Russian international train runs fast on the northeast plain of Baishan Heishui.

By the window, Valia opened a diary with a red cover, as if she had opened a dusty past.

1956, a group of young China students were sent to the Soviet Union to study aircraft design. They come from all parts of the motherland. Our father is an engineer and comes from a worker's family, while Hao is the daughter of a military commander. They came together for a common ideal and became friends.

The father of a Soviet girl, Valia, is the Soviet Red Army. She came to China and took part in the battle to liberate Manchuria. The Valia family have deep feelings for China. She and Shen Yan have established sincere friendship and beautiful love in their common study life.

After graduation, everyone returned to the motherland, and Walia came to China with her mentor shklovsky as a Soviet expert to help with socialist construction. Her feelings with Shen Yan are growing day by day. They got married in the Mid-Autumn Festival, which is a traditional festival in China, the 10th anniversary of the founding of People's Republic of China (PRC) and the victory day of the October Revolution in the Soviet Union.

A year later, with the help of Soviet experts, the plane designed by Shen Yan and others flew into the blue sky, and he and Valeria's son Xiao Hang were born.

After Walia came to China, she worked hard every day and never went back to the Soviet Union to visit her parents. Valeria's father was seriously ill, and a telegram came from home asking her to go home quickly. Valia immediately asked for leave and bought tickets for the next day. Shen Yan took Xiao Hang to the railway station to see him off, and the family was reluctant to part. None of them thought that this wait was 26 years!

Shortly after Walia left, the Soviet Union suddenly unilaterally announced the withdrawal of experts. She can't go back to China. She fainted when she was in a hurry. When she woke up, the doctor told her that you were pregnant. Seven months later, she gave birth to a daughter prematurely, named Shen Hua.

Shen Yan doesn't know that his wife has given birth to another child for himself, and he is still waiting. He wrote to Valia every month, but nothing happened. Six years have passed, and there is no news. Hao Yimei has always liked Shen Yan. She silently took care of him with gossip, suffered a lot and suffered countless grievances. Shen Yan was very moved, but he was always worried about Valia. Finally, one day, Shen Yan found the whereabouts of Valia through the relationship. She married someone else and started a new family. Shen Yan suffered a great blow.

Shen Yan's son Xiao Hang is a half-blood, and he is often bullied. Hao Yimei always protects him from harm. Xiao Hang misses his mother very much. Hao pretended to be Valia and wrote a letter to comfort his heart. Shen Yan was finally moved by Hao and accepted her love. They got married. After marriage, Shen Yan went to work in Daxinganling, and the husband and wife separated. Hao had a hard time raising him. Shen Yan never gave up aircraft design in his heart, while working, he quietly engaged in research, hoping to have the opportunity to contribute to the aerospace industry of the motherland again.

The hard days finally passed and the Gang of Four was smashed. Everyone has returned to their original jobs and the children have grown up. China resumed the college entrance examination and started the reform and opening up, and life has undergone earth-shaking changes. However, Sino-Soviet relations have not been thawed, and Shen Yan and Walia are still unable to get in touch. In fact, Valia is not married. She led a hard life with her daughter alone, waiting for the day when she was reunited with Shen Yan.

In 1980s, China developed more rapidly, and China and the Soviet Union began to have border trade. Shen Yan decided to go to the Soviet Union to find Valia, just as the aircraft factory was in transition, and the country wanted to turn this factory into an automobile factory and merge it into FAW Group as their branch. Shen Yan failed to survive, fell ill due to fatigue, and was diagnosed as a pituitary adenoma with only three months to live.

Shen Yan dare not wait any longer. Despite his illness, he went to the Soviet Union with Xiao Hang. He wanted to give his son to Walia, but they were separated for more than 20 years, just like looking for a needle in a haystack, and they never found it. Shen Yan left a letter and returned to China.

After receiving the letter, Valia burst into tears. She waited for 26 years and finally got a reply from her husband. She took her daughter to China. Shen Yan knew that Valia was not married, but she had lived with Hao Yimei and had a daughter. The two met after a long separation, and they were filled with emotion. Hao filed for divorce and reunited them. Varia didn't want to destroy their family and decided to quit. At this time, Shen Yan was dying. Before he died, he said to Valia and Hao, I am very happy to have your love in my life. I have a wish to bury my ashes in China and the Soviet Union. ...

At Harbin Railway Station, Hao handed over his photos and diary to Walia.

Valeria by the window finished reading the diary. On the train, a group of young people laughed and laughed. Like Shen Yan, they are full of youthful vigor and vitality.

Valeria closed her diary and smiled. You'd better watch TV series by yourself, because story introduction is different from TV series.