In the year 196X - On a Soviet Research Facility on the surface of Venus... A program to develop a Supersoldier Serum, codename RASPUTIN, has gone horribly wrong. Subjects developed preternatural fighting ability and reflexes. However, they became violent, and attacked the research staff. To make matters worse, the scientists attacked soon began showing the same symptoms. The station went into lock-down to prevent further spread. You play as a scientist trapped within the facility who must survive the Ninja Outbreak.