Joanna starts her adventure in Germany's Black Forest where the mighty Danube is just a trickle. At the source of the river, Joanna admires the statue of Danuvius, an ancient Roman river god who keeps guard.

Joanna Lumley's adventure continues in Austria's Wachau Valley with wineries, and the Donau-Auen National Park's turtle conservation. She visits Bratislava and the Tatras, ending with ground squirrels in Muránska planina National Park.

Join Joanna Lumley as she explores the pearl of the Danube Budapest by boat, rides the Children's Railway, discovers the city's Jewish heritage, meets Hungary's cowboys, and explores Dracula's Transylvania.

Joanna heads towards the Danube Delta, one of the last great wilderness areas remaining in Europe. At the mouth of the river, on Romania's Black Sea coast, she bids farewell to the Danube and reflects on her amazing journey.