As the Minerva approaches the Lohengrin Gate, Athrun explains the battle plan to the other pilots. While the Minerva and the soldiers of the Mahamul base draw the attention of the Earth Forces, one pilot will attack the positron cannon via a hidden tunnel. Athrun selects Shinn to carry out this vital mission, and the hotheaded young pilot agrees after one of the local resistance fighters begs for his help.

Using data provides by the resistance, Shinn flies the separated parts of the Impulse Gundam through the darkness of the narrow tunnel. As he does so, his comrades fight a diversionary battle against the enemy's superior forces.