Gundam 00

The series is set in the years 2307 AD of the Gregorian calendar. During this time, fossil fuels became exhausted and the distribution of fuels became imbalanced. Humanity must rely on an array of solar power generation systems orbiting the Earth, and supported by three orbital elevators, each one pertaining to one of the three "major powers" on the planet.

With this infinite source of energy benefiting only the major powers and their allies, constant warfare erupts around the globe for fuels and energy. The nations that rely on fuel have plunged into poverty. Many believed that solar energy threatened the "promised land of God". The chaos led to the formation of a private military organization, called Celestial Being, dedicated to eradicating war and uniting humanity with the use of four humanoid machines called Gundams. Mobile Suit Gundam 00 follows four mobile suit pilots termed Gundam Meisters, sided with Celestial Being. The protagonist is 16-year old Setsuna F Seiei, a quiet, taciturn young man who grew up in the Kurdish Republic, and a Gundam Meister for two years. He pilots the GN-001 Gundam Exia, a high mobility mobile suit effective in melee combat. Confronting the armed resistance of the three world superpowers, the Gundam Meisters were forced to fight several opposing aces, such as Ali Al-Saachez, a mercenary who was responsible for the death of Setsuna's and Lockon's family.

Facing this new threat, the three major powers eventually unite into the United Nations Army in order to counter Celestial Being's armed interventions. In order to fight the Gundams, the United Nations Army employed the help of Laguna Harvey, a Celestial Being intelligence agent who provides them with 30 units of the GN-X, a series of special mobile suits equipped with pseudo-GN Drives that are on-par with the Gundams spec-wise. As the United Nations resist Celestial Being's interventions, a second team of Gundams, known as Team Trinity, appears and assists in the Meisters' eradication of war, albeit in a much more cruel and cold-blooded fashion, in contrast with the original Meisters' more pacifist and less-aggressive nature of armed intervention.

Celestial Being's supercomputer Veda, located on the moon, was later shut down by Alejandro Corner, a former Celestial Being observer who plans to make use of the chaos and destruction created by Celestial Being to rule a reconstructed world. Without the organization's artificial intelligence, Celestial Being was subsequently overwhelmed by the equally powerful GN-X units and their superiority in quantity.

The United Nations Army initiates Operation Fallen Angels to destroy the Gundams, having discovered the location of the Meisters' mothership, Ptolemaios. During the operation, Ali Al-Saachez, now piloting the stolen Gundam Throne Zwei, kills Lockon Stratos after a climatic battle. Alejandro Corner, in his unique custom mobile armor Alvatore, attacks Gundam Exia as the GN-X units destroy the Ptolemaios and the remaining Gundams. As Exia struggles with the monstrous Alvatore, Alejandro reveals his true plan to Setsuna; to destroy and rebuild the current world and achieve world domination. Setsuna, who for long had attempted to understand and correct what he perceived as a distortion, proclaims Alejandro as the source of said distortion and was eventually successful in defeating Alvatore, killing Alejandro in the process. Just as Setsuna begins to catch his breath, Graham Aker, an ace pilot of the United Nations Army, approaches with the Union Flag Custom II and challenges Setsuna to a fight, seeking revenge for his fallen comrades and questioning the purpose of Gundams' existence. The fight results in the destruction of both suits, with the fates of the pilots unknown.