"Metal Skin Panic MADOX-01" is a 1987 OVA (original video animation) set in a near-future Japan, where advanced military technology intersects with civilian life. The story centers on a prototype powered exosuit, the MADOX-01, developed for military use. The suit is stolen by a young civilian mechanic, Koji Sugimoto, who inadvertently activates it during a chaotic encounter with military operatives. The MADOX-01, designed for combat, grants Koji immense physical strength and defensive capabilities, but its advanced systems are difficult to control, leading to unintended consequences.

As Koji struggles to understand and operate the MADOX-01, he becomes the target of Lieutenant Kilgore, a determined and ruthless military officer tasked with recovering the suit. Kilgore pursues Koji through the streets of Tokyo, employing heavy weaponry and military tactics, which result in widespread destruction. The conflict escalates as Koji, initially overwhelmed by the suit's power, gradually learns to harness its capabilities, using it to protect himself and others from Kilgore's relentless pursuit.

The narrative explores themes of technological advancement and its potential misuse, as well as the ethical implications of military-grade technology falling into civilian hands. Koji's transformation from an ordinary mechanic to an unwilling participant in a high-stakes conflict highlights the tension between individual agency and the overwhelming power of advanced machinery. The story concludes with a climactic showdown between Koji and Kilgore, emphasizing the destructive potential of the MADOX-01 and the human cost of its deployment.

The main characters include Koji Sugimoto, whose accidental involvement drives the plot; Lieutenant Kilgore, the antagonist representing military authority and determination; and Ellie Kusumoto, a civilian caught in the crossfire who provides emotional grounding to the narrative. The OVA's concise runtime focuses on action and suspense, delivering a self-contained story that balances character development with intense mecha combat sequences.