1919 year. There is a civil war in Siberia. Taking advantage of the complete confusion, Admiral Kolchak wants to export part of the country's gold reserves abroad. At the very last moment the Bolsheviks find out about it. They decide to intercept the train, but do not have time to properly prepare the operation... The girl Nadya, in whom the head of the train is passionately in love, can save the situation. Several kilometers of railway tracks to the border become a battlefield between white and red.

In 1929, the Chinese are preparing an attack on the CER, recruiting soldiers to their gang. Among them there is a resident of a lodging house Van. Having recovered after a sudden attack on a Soviet border village, the Red Army squad goes on the offensive. Wang is among the prisoners. Wang and another prisoner go on the run. But on the road between the fugitives there is a conflict and young Chinese Wang begins to realize who his true enemy is...

The investigation of a complex, complicated case of the murder of an engineer, a former prisoner of a Nazi concentration camp. The criminal, one of the executioners of this camp, did not escape retribution.