Alex, Alli, Dante, Zin, and Vergil must face Mundus the most evil demon ruler in the world. Alex is held prisoner and tortured while Dante and Vergil try to figure out a way to defeat Mundus and save Alex. What will happen? Will everyone die in this journey and the humans of Limbo city stay prisoner in lies or will they finally defeat Mundus and bring peace to the world. But peace is not always a thing that can be brought upon people.

Dante and Kane find out who they really are and where they came from in a journey throughout a jungle and underworld, but also their minds.