Boka and Vard were criminals from the future (the year 2000) who masqueraded as police officers from the Earth Bureau of Investigation. They claimed that Superman was really a criminal named the Shark who had stolen a potion to give him super-powers and escaped into the past. They immobilised Superman with Red Kryptonite and took him into the Future where they had a scheme to blackmail the Earth authorities. However, Superman freed himself and captured the Futuremen before returning to his own time.