"Active Raid: Kidō Kyōshūshitsu Dai-Hakkei" is set in a near-future Tokyo where advanced exosuit technology, known as Willwear, has become integral to society. However, the misuse of this technology has led to an increase in crime, prompting the establishment of specialized police units to combat these threats. The story centers on the Eighth Special Public Security Section, also known as Unit 8, a ragtag team of officers tasked with handling Willwear-related crimes. The unit operates under the supervision of the Ministry of Welfare's Public Security Bureau and is stationed in the fictional district of Ogawara City.

The narrative unfolds through episodic cases, with Unit 8 tackling various criminals who exploit Willwear for illegal activities. The team is led by Asami Kazari, a by-the-book officer who often clashes with her more unconventional colleagues. Among them is Soshi Kagari, a laid-back and resourceful officer with a mysterious past, and Rin Yamabuki, a skilled pilot who operates the team's armored vehicle. Other members include Haruka Hoshimiya, a tech-savvy analyst, and Kouhei Kuroki, a former delinquent turned officer. The group is supported by their AI assistant, Logos, which aids in mission coordination and data analysis.

As the series progresses, the episodic format gives way to a larger overarching plot involving a shadowy organization known as the "Black Lotus." This group seeks to destabilize society by manipulating Willwear technology and exploiting its vulnerabilities. Unit 8 uncovers deeper conspiracies tied to the development of Willwear and its potential for mass surveillance and control. The team must navigate political intrigue, internal conflicts, and moral dilemmas as they work to protect the city and uncover the truth behind Black Lotus.

The series balances action, humor, and social commentary, exploring themes such as the ethical implications of advanced technology, the balance between security and freedom, and the challenges of maintaining justice in a rapidly evolving world. The characters' personal growth and relationships are interwoven with the larger narrative, adding depth to the story. "Active Raid: Kidō Kyōshūshitsu Dai-Hakkei" presents a blend of police procedural and sci-fi elements, offering a dynamic and engaging exploration of its futuristic setting.