Fu Tingzhou and Xu Qinghuan are a loving couple. They have a deep love for each other. They have four sons and their family is happy.
Unexpectedly, an unintentional remark in the past was maliciously framed by someone, and a storm suddenly swept through the family, and the happy marriage was shattered.
In order to protect her lover and young son, Xu Qinghuan reluctantly set up a dead end.
Farewell in an explosion suddenly turned into an eternal separation between heaven and man. From then on, the lover was in pain, the children cried in search of their mother, and the family was torn apart.
Everyone thought she died in the flames, but she was the only one who carried the secret and went to the Soviet Union to join a dangerous top-secret mission. During the lonely years in a foreign country, she was pregnant alone and gave birth to a pair of twins.
These two children, born in a foreign land, have never met their biological father, and they don't know that there are brothers who are connected by blood in the distance. They are close by blood, but separated by thousands of rivers and mountains.
In his homeland, Fu Tingzhou rushed to the battlefield with deep pain. After experiencing a hail of bullets, he returned victoriously and assumed the position of regional commander, but he could never let go of his deceased wife. The four children miss their mother every day, and they only have endless expectations every year.
The project hides overseas spies and is surrounded by dangers. The young and beautiful Karina came to China with the song and dance troupe. Her amazing beauty immediately attracted Fu Tingzhou's attention.
Who is she? Why is he so similar to his deceased wife?
They reunited after four years of separation, with familiar faces in front of them, but the two could only face each other as strangers.
People who love each other dare not recognize each other when they see each other, flesh and blood relatives cannot hug each other when they meet, they are full of lovesickness and have nowhere to express their feelings, and regrets linger in their hearts for half their lives.
When the layers of disguise are revealed, can this relationship, trapped by war and separation, make up for all the sadness of the separated family members?
