In Iron Dome City, courier Lin Mo was accidentally infected with a mysterious rust fungus. His body mutated and he discovered that his blood was the key to suppressing the infection. At the same time, female scientist Chen Yurou realized that there was a huge conspiracy behind the vaccine launched by her company.
Fate brings Lin Mo and Chen Yurou together, and they form an alliance with the help of a mysterious young man named Awang.
Together, they investigate and gradually uncover surprising links between the rust disaster, a giant company's vaccine conspiracy, and an old accident that had been covered up for years. Faced with this sweeping disaster, Lin Mo was forced to make the ultimate sacrifice, and his choice would determine the fate of Iron Dome City.
Only then did Lin Mo understand that the real "prison" was not the disaster itself, but the iron curtain created by the human heart.
"Do you smell rust? That's the city bleeding." ——Lin Mo
"The needle of science is always dipped in two poisons." ——Chen Yurou
