The world collapsed under the onslaught of human genius and human madness. Billions killed in all-consuming Last terrorist attack. But humanity has survived.... Through decades of battles, pain and darkness, the remaining nations on earth have made a peace that no one expected. A group of free mercenaries infiltrates the territory of animal people to get a regulator for a thermonuclear reactor in a pre-war underground complex. Consciously going to breach the peace treaty, they are ready to face any dangers to save the floating island and hundreds of thousands of residents. However, the complex is surrounded by kilometers of predatory jungle and is not abandoned at all.