27 / THE LOCUS OF VICTORY AND DEFEAT - Heero and Quatre return to Earth and find themselves targets of the Romefeller Foundation. Faced with the horrors of war, their conviction is waning, but it seems that even Relena may not be able to encourage them to battle on.

28 / PASSING DESTINIES - Treize has come to realize that denying war will not make it go away. Instead, he has to win--and to inspire his troops, he unveils his latest bold plan--the Gundam Epyon.

29 / THE HEROINE OF THE BATTLEFIELD - Romefeller is gaining ground on Earth very quickly, and Treize and his troops seem to be losing the battle. When Heero notices that Treize is fighting against them, he joins Treize's army as a mercenary and finds himself working alongside Sally Po and Lucrezia Noin.

30 / THE REUNION WITH RELENA - Quatre isn't convinced that Heero's mercenary path is the correct one. However, having witnessed the horrors of war, he cannot stand by and do nothing. When Relena declares the Sanc Kingdom to be neutral, Heero and Quatre go to her.

31 / THE GLASS KINGDOM - Heero and Quatre decide to stay in the Sanc Kingdom and help Relena promote pacifism. But when the Romefeller Foundation attacks, Heero, Quatre, and Noin go into battle.

32 / THE GREAT DESTROYER MEETS ZERO - Still in space, Duo has been retaliating against OZ. But OZ closes in, and Duo and his incomplete Deathsythe must fight the Wing Zero.

33 / THE LONELY BATTLEFIELD - Zechs steps onto the battlefield once again and attacks Romefeller's forces. Meanwhile, Heero heads off to help the Treize Faction.

34 / AND ITS NAME IS EPYON - Zechs gets the Wing Gundam Zero and demolishes the OZ forces. But Heero is given a new Gundam by Treize, perhaps the most terrible Gundam of all.

35 / THE RETURN OF WUFEI - Wanting to join the Gundam pilots in their fight, Zechs goes to meet Wufei. But Wufei, pilot of the new Altron Gundam, believes him to be the enemy.

36 / SANC KINGDOM'S COLLAPSE - Duo and Trowa are reunited, and team up against the enemy once more. Meanwhile, the Romefeller Foundation has mounted a final assault against the Sanc Kingdom, forcing Relena to surrender to prevent a battle.

37 / ZERO VS. EPYON - Relena, now a prisoner of the Sanc Kingdom is faced with a very difficult choice. Meanwhile, Heero and Zechs engage in battle once again--this time on the grounds of the Sanc Kingdom.

38 / THE BIRTH OF QUEEN RELENA - A group of rebel colony citizens calling themselves the White Fang starts attacking OZ bases. Quatre and Noin search for the other Gundam pilots, and the Romefeller Foundation names Queen Relena as their representative.

39 / TROWA'S RETURN TO THE BATTLEFIELD - Quinze, leader of the White Fang, contacts Zechs and asks him--and his Gundam--to join their cause. Still suffering from amnesia, Trowa once again goes into battle, but this time in a Taurus.

40 / A NEW LEADER - As Relena takes her first step towards trying to achieve true peace, Heero sets out to eliminate her. Miliardo Peacecraft, the new leader of the White Fang, is now intent on going to war against OZ, the Romefeller Foundation, and the Gundam pilots.

41 / CROSSFIRE AT BARGE - Unhappy with her tactics, an angry Treize removes Queen Relena from her position. Meanwhile, the battle for Space Fortress Barge begins, with the Gundam pilots caught in the middle.

42 / BATTLESHIP LIBRA - Wufei fights on alone. On Earth, Treize's forces gather once again. Sensing the time to strike is now, Zechs orders the now-completed battleship Libra directed at Earth.

43 / TARGET: EARTH - Treize Faction forces take over a space Colony. Duo moves in to free the citizens. Meanwhile, Relena arrives in a shuttle to try and talk some sense into Miliardo.

44 / GO FORTH, GUNDAM TEAM - A battle program based on the Epyon's Zero System is loaded into the OZ Mobile Dolls, and the Gundam pilots have no choice but to encourage them. Heero encourages Quatre to take command while he goes off to fight another battle.

45 / SIGNS OF THE FINAL BATTLE - Hilde manages to sneak onto the Libra and steal some valuable data, but she is discovered. Meanwhile, the White Fang prepares to battle the forces of Earth and destroy the Gundam pilots.

46 / MILIARDO'S DECISION - Heero sneaks onto the Libra and goes with Relena to see Zechs. Treize, his forces ready to attack, challenges Zechs to one duel to settle the war once and for all. But Zechs refuses...

47 / COLLISION IN SPACE - The White Fang refuses to alter the Libra's course away from the Earth, so Quatre and the others set the Peacemillion to intercept. The two ships are now on a collision course.

48 / TAKEOFF INTO CONFUSION - Wufei takes off on a duel. Quatre responds to sorrow. Trowa defies his destiny. Duo helps repay old debts. Heero heads out for the decisive battle with Zechs.

49 / THE FINAL VICTOR - Relena and the others fight to prevent the Libra and Peacemillion from crashing into the Earth. And amidst the chaos, Heero and Zechs have one last, final battle.