After a mysterious catastrophe that swept the world, the world was reduced to a wasteland, and the vast majority of humans turned into bloodthirsty monsters called "rotten ghosts." Chen Mo, a former military engineer, relies on his extraordinary caution and rich survival knowledge to survive alone in the apocalypse. His only obsession is to find his sister, Chen Xue, who disappeared when the disaster broke out. When he accidentally discovered the clues left by his sister in an abandoned medical station - a data chip and a message pointing to the "Dawn Shelter", his silent heart was rekindled with hope. For this only clue, Chen Mo embarked on a journey across thousands of miles of wasteland. What he will face is not only the ubiquitous rot ghosts, but also the human heart that is even more unpredictable than the rot ghosts. During this journey, he must learn to trust again, deal with all kinds of survivors, step by step uncover the truth behind the disaster, and find the "Dawn Shelter" that may hide his sister and the future of mankind.