The heavy truck convoy heads toward City C, encountering a strange family of three along the way. The female lead, Wang Yan, makes her debut, and the convoy welcomes its third truck. After extreme cold and torrential rain, another bout of extreme weather strikes: scorching heat. Along the journey, the convoy encounters hordes of zombies and high-level zombies known as Evolved Ones. But they also encounter creatures even more dangerous than zombies: humans!