A group of musicians, whose band is called "Balkan express", in fact a quintet of small-time crooks , trying to make some money in Nazi-occupied Serbia.

TV series made as an extended version of an eponymous feature film. A quintet of small-time crooks that works under disguise of a musical band become the supporters of Partisan resistance movement in WW2. Being forced to escape to another part of the occupied territory, they hide in "Marlene Saloon" forgetting that the bordellos of the kind are an ideal place for espionage during the war. They get more problems than peace and rest and the tragicomedy starts.