The year 1925. The Russian engineer Pyotr Petrovich Garin is sought because of his invention of the hyperboloid heat ray. A double of him is found murdered in the dacha he was using as a laboratory and others seek to either kill or buy his idea as he flees from Paris to London, hiding in secret locations. All the while he searches for his old colleague Mantsev, who has gone into hiding, in order to confirm his findings. He makes a deal with the chemical industrialist Rolling. Using the hyperboloid, Garin creates a reign of terror, blowing up the plants of Rolling’s rivals. He then sets out on his grand ambition to use the hyperboloid to drill down to the Earth’s olivine layer and tap the vast supplies of gold there. However, this brings other nations seeking to destroy him as he throws markets into chaos.