1958. Buck Danny continues the covert operation intended to rescue American nuclear scientists kidnapped by the USSR in 1951. Unfortunately, nothing goes as planned, and Buck and friends find themselves struggling to escape the clutches of deadly SMERSH operatives - the Red Army's counter-intelligence arm ... From Russia to Iran and Turkey, from desperate dogfights in the air to commando operations on the ground, courage and consummate skill will be the key words of this conclusion to a two-part story.