The Earth Alliance blames the PLANTs for the fall of Junius Seven and orders the PLANTs to disarm while they secretly prepare for an attack. In response, the PLANTs prepares their defenses. A battle starts between the two forces which almost ends in the destruction of the PLANTs when the Earth Alliance uses their new GAT-04 Windams armed with nuclear weapons. However, thanks to a new weapon, the attack is thwarted. Meanwhile, Athrun meets Gilbert Durandal.