The Voronov Plot
 An experimental Soviet satellite crash lands in Siberia carrying with it an incredibly lethal virus. KGB scientist Dr. Voronov, a Stalin admirer, along with Olrik (posing as Soviet Colonel Ilkor) plans to use the virus as a biological weapon to overthrow the Soviet government and conquer the West. After the plot is discovered by a British spy, Blake and Mortimer travel to the Soviet Union to stop Voronov.