In the third part of the Danube series, we follow the river from Budapest through the south of Hungary, along the Serbian-Croatian border to the Serbian capital Belgrade. János Fazekas is the bridge keeper of the 170-year-old Chain Bridge in Budapest. He is the fourth generation of his family to do so. Every day he goes on an inspection to discover rusty spots. Daughter Anna wants to follow in his footsteps. On the trail of the Danube Swabians In Hajos, in the south of Hungary, several descendants of the Danube Swabians still live. Stefan Knehr Junior wants to preserve the Swabian language with its 600 proverbs. The hobby winemaker interviews the villagers to record an "acoustic dictionary". The Danube as a theatre of war The Croatian war took place right along the Danube. In 1991, the Croatian town of Vukovar was at the centre of a martyrdom that lasted over 80 days and cost the lives of over 1600 civilians. Darija Matković-Živković wants to make Vukovar a self-confident Danube city again. To leave the victim role behind. In her hairdresser's shop, Serbian and Croatian women meet - without reservations. But with a lot of fun. Party metropolis Belgrade Nightlife in Belgrade, Serbia, takes place on the waterfront. Party boats, cafés and clubs can be found along the Sava and Danube rivers. After the break-up of Yugoslavia, the waterfront flourished. More than 50 boats are now moored here. For Sonja Pavlica, it is her second home. She is a popular DJ on the party boats of the Danube. Party on the water seven nights a week - in Belgrade it's possible.