Monty travels to Europe and explores the influence of the Venetians on gardening, starting in their home city at the top of the Adriatic coast and travelling on through Croatia and Greece. Visiting a range of public and private gardens, Monty learns about the impact that history, climate change and culture have had on the people who live there. To begin with, he explores Venice on one of the city's famous barges, stepping out to visit green spaces large and small that are often hidden from view behind high walls. He is invited in to see wonderful gardens along the Grand Canal, as well as meeting those who have managed to create a productive garden on a disused rubbish dump behind one of the city’s famous churches. He then samples wine grown in vineyards inside the city limits before visiting a restored public garden with a secret passageway that leads to St Mark’s Square.