Shen (Zhang Yongxian) is leading a team into the Arctic wastelands when something large and hairy turns up and trashes their Sno-Cat. Her employers reach out to Ren (Wu Junpeng), the only person who can lead a rescue team. Ren is also Shen’s ex so he agrees. The team has to trek through a tunnel full of prehistoric birds with a taste for human brains. However, they make it out of the tunnel and find themselves in an uncharted valley. And under attack by snow sharks. Until something huge and hairy shows up…