Typhon is destroyed, Harmony has been saved. But Tobias' work isn't finished yet. Visions from the Inferno in his mind tell him that there's a greater threat, something worse than anything either the Militia or IMC have seen before. Lead to a planet covered in storms, he and KT must find the source and end it ... before it ends them. (SEQUEL TO INFERNO)

He had no hope of rescue until he came across a lone Titan, her pilot killed in action. She had no hope of survival until he happened upon her. They met as foes, but fate made them friends. Now, they've uncovered something that could destroy everything that the frontier has worked to build. They must face the inferno of war together if they are to survive.