On June 6, 2066, Shenzhen's low-altitude transportation system was instantly paralyzed. Aircraft worth hundreds of billions fell like raindrops, and the city fell into chaos. Li Yuanzhe discovered that the satellite signal was blocked by a mysterious jammer. He took the risk to activate the military's abandoned "Dragon Scale" quantum communication system, but encountered a fatal trap. When his daughter is trapped in a suspended school bus and her life hangs by a thread, he must break through the seven-level biological key within 30 minutes. The source of interference actually came from the prototype of the anti-drone device he designed himself...
