The 73rd concentration camp situated on the southern tip of Chernivtsi, a city of Ukraine, was originally used by the NRF to detain prisoners, but now is being used by the EU as a temporary concentration camp. The truth is that the previous owner, the NRF, used the complex and facilities on the ground as a detention center after the underground facility, which used to be a research facility for a biochemical weapons program, was sealed due to an accident. Such facts were unknown to the EU, at least until the detained NRF prisoners were infected by the remnant of some biochemical agents that leaked out from the secret underground facility. The infected prisoners showing hyper-stimulation, regression to base instincts, excessive aggressiveness, and even a trace of hive mind, have taken down a handful of EU soldiers stationed in the facility. ~The guard unit who are pinned down inside the detention center is forced to fight for their lives to escape from the infected fugitives...