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

A spy is shot dead at the border of North China. Investigator believe that there must be another spy crossing the border elsewhere at the same time.

In 1894 the Japanese Imperial Navy provokes the Chinese navy to test defenses. Some Chinese want to make concessions while others want to fight. When Japan invades, some naval officers put up a heroic resistance.