The Polish pilots, at first underestimated and ridiculed, become a legend. In the ranks of the Royal Air Force (RAF), they form an elite unit — Squadron 303, with which no one could equal. At a time when every day could be the last day of their lives, they performed aerobatic figures on the brink of life and death without hesitation. The film presents not only the amazing actions they took part in during the Battle of Britain but also their private lives. Who they loved, who they lost, and who they missed.