In 1938, on the eve of the Dongyang Arsenal's westward move, technician Zeng Mingyu was ordered to escort seven top-secret drawings. The first six pictures are of the final assembly of the rifle, but the seventh picture contains the real killer move - the design sketch of an anti-tank mine. Whoever builds it can blow up the tracks of Japanese tanks with one shot.
However, the seventh drawing disappeared, the thief was hiding beside him, and his fiancée and mentor were all suspicious.
This young man who only knew how to draw was forced to pick up a gun and pursue a thousand miles. He didn't know that the military commander wanted it to save lives, the Japanese spies wanted it to be destroyed, and the Jianghu gang wanted it to exchange the safety of a city.
A piece of blueprint data became the fuse that trapped everyone in a fatal situation.
