Our contemporary, who died from a sudden attack, finds himself in the body of a talented Tsarist intelligence officer—and is given a chance to change the course of history. When the "Lusitania" is hit by a torpedo, the hero prevents the ship from going down: his knowledge and skills overturn well-known historical events. In the struggle for the fate of the vessel and the country, he defies the circumstances, uncovers conspiracies, and does everything so that Russia remains a great power.