Geist, the commander of the Jerra special forces, is genetically-engineered by means of a new scientific process termed ‘Bioclone theory’.

He was so extraordinarily ferocious in battle that he was ordered placed in suspended animation aboard a stasis satellite and launched into Jerra’s orbit.

In a desolated city, Geist discovers a group of bandits, whose leader kills a stray soldier wearing a powered suit.

Geist, with Paia, forms an uneasy alliance with the crew of the Noah Guards, led by Colonel Crutes, before participating in a mission to stop the Regular Army doomsday device “Death Force” from activation.

Geist equips himself with the acquired powered suit which he has customised and modified to reflect his fighting ability, and takes part in an assault on the Brain Palace, where the computer that is responsible for the Death Force is housed.

At a board of Regular Army officials, Lieutenant Leigh Wong attempts to convince them to use Geist in battle; he is a genetically-engineered soldier bred to specialise in strategy and versatility, designed to perform as a solitary fighter, rather than within a group.

When en route to their mission, Stanton makes clear he refuses to accept Geist, especially after what happened the day before, keeping him as a reserve soldier.

On board, Wong discovers a plan for the enemy forces to fire the ship's cannon at their own city, which is loaded with a nuclear armament, as has been ordered by Earth.

Geist successfully defeats the enemy and uses part of its machinery to escape the ship which is falling from flight due to the damage its sustained.

At the initial draft stage, the working title was “Death Force” and the story involved an unstable soldier, named Patrick, who was imprisoned on a spaceship drifting through space, and is then rescued by allies in powered suits.

Ohata was highly-influenced by international films such as Mad Max, The Terminator and The Texas Chain Saw Massacre, and felt that the new technology afforded by video could produce something similar in Japanese animation.

[3] Riku Sanjō, then new at the time as a screenwriter, developed the story through multiple consultation meetings with Ohata, in which there was an emphasis on visual motifs and scene direction.

While the initial script was written to the length of 45-minutes, Hayato Ikeda encouraged Sanjo to write as much as possible in order for him and Ohata to express their ideas fully.

Up to 200 pages of manuscript were written during the planning stage, and it was agreed between Ohata, Ikeda and unit director Hiroshi Negishi to focus on the action scenes, so numerous plot points were cut.

[4] A later working title during production was “Sokihei Billion Buster”, with some differences in the story, such as the biker gang’s name being “Metal Cetus”.

[5] Another draft of the story focused on the intensely demanding conditions of the powered suit being crossed with the uncontrollable nature of the MDS.

[6][7] Ikeda confessed to being new to mecha, as well as being new to OVA as a format, and performed as a mediator on the overall production, with the majority of creative decisions being handled by Ohata.

The final fight scenes were envisioned to take place in a brightly-lit environment with detailed backgrounds, but due to constraints, simpler decisions had to be made.

Art director Yoshinori Takao recalled having difficulty deciding upon the lighting, with the added complexity of the character movement and therefore worked to clearly define their situational relationship.

Curiosity by fans over U.S. Manga Corps' logo boosted domestic sales of the OVA and prompted Central Park Media to collaborate with co-creator Koichi Ohata in producing a sequel.

Geist - Director's Cut, featuring roughly five minutes of additional footage - including a new introduction and epilogue that paved the way for the sequel.