In 951, at the Northeast Heavy Machinery Factory, everyone is waiting for Su Jinnian to make a fool of herself. A "domestic goddess" returned from abroad, trained in cooking and sewing, dares to take on a scrapped lathe that even Soviet experts couldn't repair?
Top engineer Su Jinnian lets out a cold laugh. The vast industrial technology tree in her mind is just waiting to hone its edge on this piece of junk! The blueprints are being held up? She redraws them by hand! The precision isn't good enough? She gets to work and makes it herself!
From heavy-duty machine tools to ten-thousand-ton hydraulic presses, one major piece of equipment after another rolls off the production line. The country's conservatives panic, and the Western powers drop all pretense, issuing their harshest blockade yet: "Without our aid, you can't even make an iron nail!"
Then, at an international industrial exhibition, a monstrous piece of heavy machinery, made one hundred percent domestically, smashes through the global technology blockade! When everyone sees the name on the chief engineer's file, the whole world goes mad...
