Bamboo copters are a traditional children's toy in Japan, but this contest for the "ultimate" one is anything but child's play! 2 teams - the "Wings of Light" (headed by an expert in aerodynamics and optical modeling), and the "Bio Bravos" (headed by a specialist in biomimetics) vie to see whose copter can stay aloft the longest. Who will prevail: the aeronautical engineer with cutting-edge technology, or the research scientist drawing on 4.6 billion years of evolution? Watch to find out