The former badminton genius Cheng Ran was forced to retire due to a conspiracy. His right knee was seriously injured, but his left hand hid a secret killer move. Three years later, rookie player Lin Xia broke into his life. She was amazingly talented, but she didn't know that every game she played was secretly monitored by the "Sports Bureau". When the two were forced to team up to participate in an exhibition match, Cheng Ran discovered that Lin Xia's neural reactions could interfere with the nanomechanical fibers in his body - the neural controller implanted three years ago, and the truth behind his prediction of the ball's path.
As the investigation deepens, a dark experiment spanning sports competitions and military conspiracies emerges: the "Neural Cloud Network" plan is hidden behind badminton events, and the players inadvertently become the hosts of nanomachines. Cheng Ran's sister Cheng Xue "died" due to resistance, and Lin Xia's mother transformed herself into a biological virus. When the alien ruins under the Antarctic ice awaken, mankind's only chance of winning is to hit a killing ball with a speed of 426 kilometers per hour...
