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?

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.