The consciousness of a special forces officer with the call sign "Ermak," who passed Afghan, two Chechen campaigns, several other conflicts and foreign missions, after death is transferred to 1888. The new body belongs to a fourteen-year-old orphan - the future Cossack of the Amur Army. Now Yermak needs to find his place in the new world. What to do next, such a question is not in front of Yermak. He knows how to defend his homeland, and it doesn't matter what it is called - the Russian Federation, the Soviet Union or the Russian Empire, but one is not a warrior in the field. The hero has combat experience of future times, an afterthought about the dramatic events of future history and a desire to avoid such a fate for the Motherland. And also Cossacks from their native village and the methodology for training special forces.