The third season of Enen no Shouboutai.

Shinra and the team are about to uncover the world’s greatest secret. But just as the other Special Fire Force Companies unite to face the looming disaster, Obi is captured by the Tokyo Imperial Army, and Company 8 is branded as traitors. Hunted by the Empire, they must fight alone to rescue Obi and stop the Evangelist—all while a new assassin and the corrupt Captain Burns block their path.

(Source: Crunchyroll)