21 years after a major armed robbery where the masterminds escaped, a video of the crime resurfaces causing the police to reopen their investigation.

Based on true events set during WWII in Northeast China, an ordinary man is thrust into a turbulent fate against the backdrop of the inhumane bacterial experiments conducted by the Japanese Imperial Army's notorious Unit 731.

Hu Bayi searches for his ancestors' remains alongside his friends Chubby Wang and Golden Teeth. He ventures into Daxian Mountain, facing deadly tombs, eerie ghosts, and perilous traps.

After being kidnapped for a massive ransom, Gao Li crosses paths with Yang Fei, a young man desperately trying to save his father, and together they battle criminals, heal family rifts, and find love amid chaos.