Air Transport Auxiliary pilot Doris Johnson is sent on a solo trip, escorting a British general on a secret mission to Scotland, vital to the success of D-Day, the forthcoming invasion of Nazi-occupied France. Her natural inquisitiveness means her life is put in great danger and she'll need more than her superb flying skills to survive. Doris has to trust her own instincts, and those of the new friends she makes, so that everyone comes through their adventures in one piece. Not everything is as it seems, sometimes by design, as she faces whatever is thrown at her with a determined smile and the spirit to stand fast for what is good and right.