The convoy has been killed, weapons in hand - here it is, freedom! A group of hardened prisoners breaks through the dense forests to the railway. They are confident that they will break through any cordons. But everything turns out somehow wrong: the cartridges in the machine guns are blank, and the chase finds them too easily and quickly. What are these strange and scary games? And why were some ampoules implanted under the prisoners’ skin? It looks like they are guinea pigs in some kind of operation. True, the prisoners - marine Anokhin and huntsman Uvarov - do not agree to the role of rabbits. They are larger and more dangerous animals...

The novel was also published under the title “Thrown March” in the “Marine” series.