ZG80 is a prequel of Metastaze. The movie brings back its characters to prewar Yugoslavia where they, as part of Bad Blue Boys, go on a football match in Belgrade to see Dinamo play against Crvena Zvezda. They encounter guest fans, their arch rivals Delije, in a series of events that lead to football fans war on the streets of Belgrade.
Two soldiers from opposite sites get stuck between the front lines in the same trench. The UN is asked to free them and both sides agree on a ceasefire, but will they stick to it?