At the end of the 1920s, in Petrograd, on Krestovsky Island, the corpse of a man similar to the engineer Garin was found. Garin himself managed to take advantage of the brilliant discovery of the scientist Mantsev and designed an apparatus with destructive power. A dangerous hunt begins for this invention. Having faked the death, he emigrated from Russia and, under the guise of a French businessman, tries to establish contacts with the head of one of the European financial concerns, Rolling. Garin's ultimate goal is power over the world...