Retired ordnance technician Chen Li accidentally opened a time and space door to northwest Shanxi in 1940. Faced with a force that could change history, he did not hide his profit, but reported it to the country as soon as possible. After verification, the "Xinhuo Special Project" was officially established.
Only Chen Li can travel through it. The space-time gate opens for twenty minutes every seven days, transporting up to three tons of supplies each time. Modern armies cannot enter, and tanks and aircraft cannot pass. Guns, ammunition, medicines, radios and production tools must compete for the limited transport capacity.
From then on, a secret supply line spanning eighty-six years began to operate. When Li Yunlong met the national logistics of modern China, the battlefield in northwest Shanxi ushered in an unprecedented change.
