A Russian Navy combat diver, codenamed Hip, receives an order to retrieve a capsule containing classified information that our agent left under the pier of a military base in a neighboring state. But underwater, the fighter was met with an ambush! By some miracle, using a weapon prohibited by the conventions, Hip breaks free from the trap, surfaces somewhere quiet, and doesn’t recognize the surrounding area—he’s been thrown back 80 years, right in the thick of the fighting for the liberation of Ukraine, occupied by the Nazis.
Nothing stops the underwater special forces operator from lying low in safety: there is even a fairly reliable hideout. But modern civilization hasn’t managed to dampen the fighting spirit of the Russian warrior—so the saboteur takes the fight. He will face elite German jägers, Italy’s top “frogmen,” and the soldiers of the Armia Krajowa. And to deal with the enemies, all it takes is to do the impossible!