4 Months has passed since the Inspector Conflict, the Earth Sphere is once again at peace. But the increased number of terrorists that appeared throughout the world caused by the Divine Crusaders escalates, and put economic strain on the colonies which leads to some colonies in rebelling again the Earth Sphere. Brigander General Jamitov Hymem formed the group Titans to strengthen the army against the terrorists.

As Londo Bell returns from La Gaias after the events of EX, Bright Noah decides to leave his position for a while in search for Lieutenant Quarto Bajena, who went missing for unknown reasons. He parted with the Getter Team under the direction of John Kowen for his search and unravel some events happening in the current world. Things go to worse as Ondora Poseidal declared war on the surface world and even worse, the Divine Crusaders is revived by Neo Zeon Leader Haman Khan under the name Neue DC to take over the Earth Sphere.

With the war escalating, an unknown army from another galaxy called the Guests has arrived in the Earth Sphere led by the United Solar System Army Commander, Teniquette Zezenan. The reveal themselves to be part of the Zovorg Alliance which is where the Inspectors originated. With no options left, the Londo Bell must initiate Operation Final with their last fight against the Zovorg for the survival of their planet.