In the super typhoon era, the city was reduced to a vast ocean. In order to find his sister who was separated in the disaster, former special soldier Shen Tuo had to return to his old career, driving a modified assault boat and undertaking various life-threatening orders in the dangerous water ruins. From delivering life-saving supplies to delivering rebellion intelligence, his express route gradually pieced together a shocking conspiracy: this world-destroying disaster was actually a carefully planned "human screening." When Shen Tuo discovered that his sister had become a "sample" at the core of the conspiracy, the doomsday courier decided that he would not only deliver the goods, but also deliver a final resistance called "hope" to all the abandoned people.
