In 2045, the era of air and space war has arrived. Shen Lie piloted the J-50 "Zhulong" to dive from the edge of the atmosphere, tearing apart the enemy formation at Mach 25. Three generations of Air Force blood, the awakening of AI co-pilot "Fuxi", ancient ruins on the moon, contact with alien civilizations - from the South China Sea reefs to low-Earth orbit, from the feelings of family and country to the destiny of mankind, this is the epic of the Chinese Air Force, and it is also a soul torture about "why we fly". The blade of the sky is not meant to cut the sky, but only to protect the people on the earth who are looking up.