After a rigorous selection, Lei Yu and other outstanding pilots officially become test pilots. Under the leadership of Commander Zhang, they participate in the test flights of the latest fighter jet. At high altitudes, the engine suddenly stops and even catches fire, and then the aircraft loses control .... Over and over again, they face death, only to obtain data from the most extreme circumstances. With the delivery date of the fighter jet approaching, the difficulty of their tasks gradually escalates, can they triumph?
