12 of Britain's most successful young entrepreneurs compete to see who can create the most profitable businesses in six different cities across the world. Completely out of their comfort zones, stripped of all luxury, they are tested to see how successfully they can create a business from scratch in a different sector and a different country each time. After Natalie Haywood was named and shamed as the Last Millionaire, we look back over the series to see how, from the group of twelve winners, we were left with one loser. With new interviews from the entrepreneurs and unseen footage of them in all six cities we find out what the rivals really thought about each other. The best and worst businesses are also reviewed, from selling warm water in Istanbul to a naked art photograph shoot in Berlin, from camel rides by the pyramids in Cairo to designing trendy T-shirts in Hong Kong. The entrepreneurs give their views on who were the best blaggers, who was the best dressed and who were disasters to work with. Natalie explains how being branded with the title no-one wanted has affected her life, while the others reflect on how the event has been a life-changing experience.