Further east of the Dark Blue Sky, where the Heavenly Horsemen fought, the story of a Czechoslovakian fighter squadron takes place, to which Second Lieutenant Jandak arrives as a rookie. He then experiences both his first love and a battle high above the clouds in the collective of combat pilots. Combat pilots on the Eastern Front thus experience similar stories to their Western colleagues, with the same goals and plans and the same slim prospects of survival in their daily life-and-death battles. Not surprisingly, they fought at a time when they had a common enemy, characterised by the Messerschmitt aircraft.

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