Lin Mu, an 18-year-old high school student, and three strangers, each with their own unique skills, were thrown into a wild world that merged multiple time and space fragments by a mysterious force. They must survive here for ten days before they are eligible to return to reality. While other time travelers were still struggling with their fists and wooden spears, Lin Mu found that he could connect to a special "civilization database" where all human knowledge from the Stone Age to the Information Age is stored. As a result, the style of survival painting suddenly changed: while others drilled wood to make fire, he rubbed batteries with his hands; while others had tribal conflicts, he engaged in a united front; while others feared "divine punishment", he analyzed the law of energy fluctuations. When the "Trial of God" was finally revealed, everyone discovered that this seemingly primitive world was conducting a cruel civilization screening of intruders... And what Lin Mu brought was the "cheating code" of an entire civilization.