"Initial D: Battle Stage" is a direct continuation and compilation of the racing battles from the "Initial D" series, focusing primarily on the high-speed duels between street racers in the mountainous regions of Japan. The narrative centers on Takumi Fujiwara, a young delivery driver who unknowingly hones his exceptional driving skills while delivering tofu in his father's Toyota AE86 Trueno. Takumi's natural talent for drifting and navigating treacherous mountain passes draws him into the underground world of street racing.

The series highlights key races from the earlier seasons, condensing the most intense and pivotal moments into a single feature. Takumi faces off against formidable opponents, including the Takahashi brothers, Ryosuke and Keisuke, who are renowned for their precision and skill. Ryosuke, the leader of the RedSuns racing team, serves as both a rival and mentor to Takumi, recognizing his potential and pushing him to refine his abilities. Keisuke, Ryosuke's younger brother, is a fierce competitor who challenges Takumi in a high-stakes battle, showcasing the evolution of both drivers.

Other notable racers include Takeshi Nakazato, who drives a Nissan Skyline GT-R and relies on raw power and grip, and Kyoichi Sudo, a skilled driver of a Mitsubishi Lancer Evolution III. Each race is characterized by strategic maneuvers, technical driving techniques, and the unique characteristics of the cars involved. The battles emphasize the importance of understanding road conditions, vehicle dynamics, and the psychology of competition.

The narrative also explores the camaraderie and rivalries within the street racing community, as well as the personal growth of Takumi as he transitions from an inexperienced driver to a respected racer. The races are interspersed with brief insights into the characters' motivations and backgrounds, adding depth to their interactions and decisions on the road.

"Initial D: Battle Stage" serves as a streamlined recap of the series' most iconic moments, offering a concentrated dose of adrenaline-fueled racing action while maintaining the core themes of skill, determination, and the pursuit of excellence in the world of street racing.