What is Styx? Where did he come from? What secrets does he hide? All this needs to be figured out in order to get out of such a creepy and terrible place. Roy's team, along with Green and an additional squad, will have to go to the creepiest and most dangerous place in Styx - Inferno - to find answers to these questions. But those who know a lot do not live long - outsiders kill those who have learned too much.