With the arrival of the Gundam Barbatos Lupus, Tekkadan successfully repels the Dawn Horizon Corps' invasion, but placing themselves on the latter's hit-list. Later, McGillis - under his Montag pseudonym - proceeds to hire Tekkadan to eliminate the Dawn Horizon Corps while Arianrhod and Isurugi, McGillis' personnal assistant, are each separately dispatched to Mars to hunt the pirates down as well. Meanwhile, tensions arise when Hush desires to undergo Alaya-Vijnana surgery, despite the fact that his childhood friend Builth was left paralyzed by the surgical procedure during his time with CGS and committed suicide.