Germany was divided into East and West after WWII, where citizens of either treated the other side as enemies. In the midst of Cold War, however, the Earth was invaded by an alien life form landed on Kashgar, Xinjiang Uyghur Autonomous Region, known as "Beta." Now, ten years after the first contact, East Germany, formally German Democratic Republic, has become the front line.
Schwarzes Marken - watch online: streaming, buy or rent
Currently you are able to watch "Schwarzes Marken" streaming on Crunchyroll, HBO Max or for free with ads on Crunchyroll.