The Earth is in danger, and salvation is on the way - this time from the air! As with all volumes in this series, individual issues on a theme have been compiled here and supplemented by the author with research material, sketches, and explanations. The theme of this volume is flying, a passion that the author Roger Leloup wholeheartedly gave to his heroine, as it has always been a dream for him. Thus, he equipped Yoko Tsuno for these adventures with the best airplanes from the past, present, and future. The collected volume includes the individual issues 5 "Flight into the Past," 15 "The Cannon of Kra," and 24 "The Seventh Code.".