Ma Liang, a wandering boy, met Xuan Xuan, a child who was forgotten by his family and had no one to care for him. The similar fate brought the two lonely teenagers closer and closer. They built a small home together in the wind and rain.
In the puppet state of Manchukuo in the 1930s, four Communist party special agents, after returning to China, embark on a secret mission. Sold out by a traitor, the team find themselves surrounded by threats on all sides.
