Soviet блокбастер "Major Whirlwind" first told about that, how in spring of 1945 our military secret service prevented elimination Germans of the ancient Polish city of Кракова. Characters of heroes are pictures - collective, and a row of events and tragic finale are invented. In basis of plot is authentic history of battle activity of reconnaissance group "Voice" and her commander - former rural head master Evgeny Birch wood.A rescue of Кракова is a not only exploit that accomplished the real "major Whirlwind". For 150 days of being in the rear of opponent a group "Voice" succeeded fully to find out Краковский укрепрайон, collect and pass in the staff of 1th Ukrainian front reliable information about distribution of nazi armies, corps and divisions, air squadrons. About that, how all of it succeeded to be attained, Evgeny Березняк told in the book. And the adventures described in her are much more spectacles, than in a film.