Set in a part of Tokyo that has descended into a quagmire, the story follows Unit 8 of the 5th Special Public Security Section's 3rd Mobile Assault Division — popularly called "The Eighth" — who don powered armor "Willware" exoskeletons to counter the rise in crime.

[Source: Newtype via Anime News Network]

Second season of Active Raid.

Set in a futuristic Tokyo, Active Raid tells the story of “The Eighth,” a rash and careless unit of power-armored police called the “5th Special Public Security Section’s Mobile Assault Division.” After the Third Quicksand Disaster sinks Tokyo into a quagmire, the city's reconstruction efforts are carried out using high-output, reinforced exoskeletons called Willwears. But they can also be misused, and to combat the crimes involving them, the National Police Agency establishes at its Kichioji Branch the Special Public Security Fifth Division Third Mobile Assault Eighth Unit, AKA Unit 8.

[Source: Crunchyroll]