In the distant future, mankind has colonized other planets in the universe. While many planets lived in peace, the planet Jerra has been ravaged by decades of war. Geist is an M.D.S. (Most Dangerous Soldier), an enhanced human with unsurpassed combat capabilities and an insatiable lust for battle. Because of his uncontrollable nature, Geist is cryogenically frozen and locked in a satellite. Several years later, the satellite crashes and Geist wakes up from his sleep to engage in another war. This time, to help the army stop the planet's central computer from activating a doomsday device that will lead to total annihilation of all life on Jerra.

M.D. Geist created by Koichi Ohara. Anime rights belong to Nippon Columbia and Central Park Media.