Near the small town, strange portals were noticed. Scientists were sent to the portals for research. But the connection with the scientists broke and you are sent to find out what happened to them. Upon arrival in the city, you discover that several more portals have opened in the city and from there crowds of unknown monsters surged. To save the inhabitants, you decide to destroy all monsters and close all portals. Weapons are scattered around the city that will help you in the fight against monsters.