Its Cosmic Era 70.02.11, and the battle between the Zaft and Earth forces has been dragged out for over 11 months. In response to the approaching threats of war, the production of the Earth's secret weapon was accelerated, and 5 Mobile Suits were created. Made out of pure Gundanium, and harnessing a power many times more powerful than any other Mobile Suit at the time, they are known as "Gundams".

However, theres a spy in the ranks of the Earth forces, and the mining satellite Heliopolis is no longer neutral; its a battleground! While the colony is warding off the invading Zaft mobile suits, an elite group of Zaft soldiers infilitrate the satellite and steal 4 of the gundams! Only one is saved, but will it be enough to avert the destruction of Earth? And will Kira be able to face a battle with his childhood friend turned enemy by sides-of-war, Asral?