Season 1

In a futuristic, post-disaster Tokyo, the "Special Public Security Fifth Division Third Mobile Assault Eighth Unit," or "Unit Eight," is a police unit specializing in handling criminals who wield dangerous wearable technology called "Willwear." Equipped with Willwear of their own, the squadron is often criticized by the public for their carelessness and disregard for protocol. Sent in by the government as an undercover agent with special instructions from the higher-ups, Asami Kazari is Unit Eight's newest member. Determined to straighten out what she expects to be a group of incompetent fools, she instead finds a team of well-intentioned experts who use very effective—albeit unorthodox—methods, hindered by strict regulations. With their newest member by their side, Unit Eight fights crime and overcomes unexpected adversaries in Active Raid: Kidou Kyoushuushitsu Dai Hachi Gakari.

第三次流砂現象によりその一部が泥濘に沈んだ東京。高出力・強化装甲を使った犯罪の増加に対処すべく、警察庁警備局は、その吉祥寺分室に第五特別公安課第三機動強襲室第八係──通称を新設した。様々な法的制約としがらみに縛られながら、知恵と勇気と口八丁で凶悪事件に挑む若者たち（一部を除く）！ 決裁完了、出動せよ!!