With ZAFT having stolen four of the prototypes, young Coordinator Kira Yamato pilots the GAT-X105 Strike Gundam and is forced to fight his old friend Athrun Zala.

在他遇到了潜入扎夫特军人，过去好友阿斯．萨拉。两人困惑不知如何是好。另一方面，工厂内越来越大。