Snow Crisis

In the 21st century, a global cold wave struck, killing tens of millions of people in just a few days. Only then did humans realize that this was not a simple cold wave, but a global crisis. The powerful wind and snow destroyed many communication equipment around the world, and the power supply system was also severely affected. Crisis! Crisis! Crisis! At the same time, an accident occurred in a certain country's research institute, and several experimental wolves took the opportunity to escape. In the process, they mutated and gained higher intelligence. In just a few days, they were dispersed to various continents by cargo ships. This is not the point. The point is that the number of wolves around the world began to grow rapidly at almost the same time, and they invaded countries around the world in the form of wolf packs on a large scale. A real-life werewolf killing is about to begin.