The Death Train carries people thrust into countless perilous trial worlds. Every mission has a countdown, and failure means being erased by the rules. Calm and astute Chen Ye bands together with companions to survive deadly locations such as the Corpse City, the Ice Abyss, and the Infinite City. They battle terrifying mutant monsters while guarding against human deceit. Ambitious Jiang Ning treats others as mere pawns, stopping at nothing to seize resources. In desperate plights, they weigh gains and losses, struggling between monster onslaughts and comrades' betrayal, relying on talents, strategies, and teamwork to find a path to survival across life-and-death trials.