The Archangel crew crosses the Red Sea to head towards the neutral Orb Union with Cagalli and Ledonir Kisaka on board. With the previous battle weighing heavily on him, Kira talks to Cagalli about his reasons for fighting, making Flay jealous. They are attacked by ZAFT air and underwater type mobile suits, but Kira and Mu manage to take them out.

A battle with ZAFT submarine forces led by Commander Marco Morassim prevents Kira from fighting alongside Mu and Cagalli in their FX-550 Skygraspers. Cagalli's Skygrasper sustains damage and is forced to turn back, but she encounters Athrun's transport plane; her Skygrasper is shot down, but not before shooting down his transport plane, forcing Athrun in his Aegis to eject from the transport plane. By chance, they are both stranded on the same deserted island.

An animated short featuring the characters and mecha of the Astray R manga/novel series, as well as mobile suits from the Gundam SEED MSV (Mobile Suit Variations) model kit series.

A short special, set between the end of Gundam SEED and the beginning of Gundam SEED Destiny, showing what happened to the characters.

An animated short featuring the characters and mecha of the Astray B manga/novel series, as well as mobile suits from the Gundam SEED MSV (Mobile Suit Variations) model kit series.

A special recap, that analyzes the events of the series following operation "Break the World" and military strengths of ZAFT, Orb & the Atlantic Federation. This episode does not appear on the DVD release.

The Archangel and its allies are now humanity's last hope to prevent Durandal from carrying out his Destiny Plan. Once again, a fierce battle begins around the Requiem cannon and its relay stations, and the Gundam pilots meet in a final confrontation over the lunar surface. Shinn against Athrun, Kira against Rey, Archangel against Minerva... In the end, there can be only one victor.

Extended cut of SEED Destiny's series finale released as an OVA.