Having eliminated Requiem's first relay station, the Archangel and Eternal rush to the moon to join the attack on the Daedalus base, only to find their way barred by the mobile fortress Messiah. Kira tells Athrun and the Archangel to continue on and destroy the Requiem cannon, while he and the Eternal stay behind to deal with Messiah.

The Archangel races toward the Daedalus base, with the Minerva and Shinn's Destiny Gundam in hot pursuit, and Athrun is forced to battle Shinn and Lunamaria in order to protect the Archangel. Meanwhile, the Eternal leads the attack on Messiah, and Rey's Legend Gundam enters the fray to challenge Kira's Strike Freedom. As the chaotic battle rages over the lunar surface, the ultimate fate of humanity itself hangs in the balance.