During a war for control of Earth's orbital elevator, Kei Katsuragi detonated a Super Dimensional Bomb, which shattered the barrier between the alternate dimensions of Earth, and collected them together piecemeal. In addition to the dimensional chaos, a giant barrier appeared around the earth, sealing it, causing rapid global warming and the eventual extinction of all realties on Earth. Kei and his wing-mate Olson are the only ones who can revert the Earth back to normal because they were in the focal point of the blast. They are dubbed the Ideoblasts and are thrusted into a chaotic world where the peoples of alternate realities battle each other to capture them so that they can harness the power of the dimensional bomb and ensure their races respective survival.