In early 1707, there are battles with the Swedes in the Russian Tsardom, and constant rebellions flare up in the outskirts of the country. Tsarevich Alexei, left without his father’s attention, ends up under the protection of Prince Menshikov. As a result of an unusual incident in a bathhouse, Alexei wakes up in the body of a modern person who died from a lightning strike. Now he must decide whether to remain the same Alexei or take the difficult path of transformations inspired by the deeds of Peter the Great.