On a summer night in 1975, a military train sped through the north-east of the country.

Liu Hong, an old railway worker, goes back where he fought against the japanese invaders during the war.

Set in the turmoil years of China, a foreign girl is saved and protected when she suicides because of her Chinese lover has been put into prison for mourning Premier Zhou.

Lin Jingjing and Xiao Yi of the instrumental music class of the art school were selected to open a hotline for middle school students in a provincial city. Lin Jingjing and Xiao Yi received calls from many students in the class and received a call from Wang Yanyan, a girl from the rural entrance exam who fell in love with male teacher Yu Bin. Class teacher Huang is an absolutely traditional educator. She hates Wang Yanyan's early love. At the same time, her control of her classmates has been met with sarcasm. Depressed and helpless, she also called the hotline.

Xia Chen is an award-winning student in a primary school in Qingdao. For this reason, his father and mother reward him with a trip to Beijing during his summer vacation. However, he can only go with one person. Although someone will pick him up and take care of him, he can only be contacted by secret code.

The new generation of ice and snow athlete Lei Lei won the third place in the men's juvenile free skating competition. According to regulations, he should be selected into the national training team. However, in the national juvenile figure skating trial, the name of the national training team was not raised, but his teammate, Zhao Lian, who only won the eighth place, was on the list.