While floating down the Danube, two wannabe terrorists reach Novi Sad with a plan to set up a bomb there. A guy who walks near finds the bomb by an accident, and decides to simply throw it into the river thus saving the city from destruction.

A police-escorted prisoner transport supervised by Interpol sets off to Belgrade. The route leads the transport through Pančevo, where they encounter an ecological disaster and infected people who are trying to kill them. Interpol agents Mortimer Reyes and Mina Milius soon realize that their only chance for escape from the zombie hordes lies in allying with the dangerous, mysterious prisoner.