Thirty years after the meteorite struck the earth, the mad virus has already ravaged the entire human civilization. The low-level infected people have died out in the passage of time, and the remaining "Laughing Nightmare Man" retains intact intelligence, is good at using weapons, and has a thirst for bloodshed. They are the cruelest hunters wandering the wasteland. Order has completely collapsed, rogue bandits have taken over the mountains and become kings, and the survivors are huddled in the wilderness, struggling to survive in the cracks between viruses and man-made disasters.
Fang Wuyan, a former mercenary, bears the old scars of battlefield fighting and betrayal and escape. He lives incognito in the border town of Niwa, and earns a living by going deep into occupied areas to collect supplies from the old world. He thought he would spend the rest of his life in a muddy town, but a raid and massacre by rogue bandits burned his home to ashes.
Taking the orphan Simin and his fiancée Xinya aboard the escape barge, he accidentally broke into a dirty deal between the ship owner and Jiang bandits, and rescued Duan Li's mother and son who were kidnapped. After a night of bloody fighting, a boat full of villains were killed. A few people drifted on a rubber raft and accidentally broke into an unknown and isolated island.
The jungle blocks the sun, beasts are watching, and the weird laughter coming from the depths of the jungle implies that this isolated island is by no means a pure land - the infected people who disappeared during the epidemic may have evolved into more terrifying forms in this untrodden land.
Digging ponds to store fish, building gates to guard caves, and smoking meat to store food, Fang Wuyan used his battlefield fighting skills and wilderness survival experience to provide a shelter for three women and infant babies in a desperate wilderness.
There are no reinforcements, no return date, no homeland in the wasteland, and everything on the deserted island is dead. When the wild laughter in the depths of the forest cuts through the long night, the knife and gun in his hand are the only barriers to protect the last trace of humanity.