When it comes to flying the unfriendly skies, the United States military demands the very best. In this fascinating installment of "Nova," you'll get a rare, behind-the-scenes look at the competition between aviation giants Lockheed Martin and Boeing as they race to win the lucrative contract to build the next generation of fighter plane. See nail-biting footage of high-tech aircraft in action! 120 min. Standard; Soundtracks: English Dolby Digital stereo, DVS.