A workplace rookie, Lin Ze, has just boarded the train from Longguo to Wulaguo when he freezes in fear. This is because he unknowingly spots Dai Bowen, a Class A criminal who is wanted by the police, standing beside the first row of seats. With the train already in motion, Lin Ze finds himself trapped with no way to escape.
Forced to remain on the train, Lin Ze begins using his ability to predict the future, carefully calculating the consequences of different actions. Along the way, he repeatedly turns life-and-death situations around, uncovering key information about the number and layout of the criminal syndicates hidden among the passengers, providing vital clues for capturing the criminals.
As Officer Chen sacrifices himself heroically, Lin Ze evolves from a timid, passive bystander into an active participant, using his wits and courage to outsmart the criminals. In the end, he manages to apprehend all the criminals, ensuring the safe return of every passenger on the train.
