Londoners Lily and Natasha are in their mid-twenties and keen to get onto the property ladder. Currently renting a one-bed flat in east London, they have impulsively decided to buy a 35-year-old narrowboat at a knock-down price that needs considerable work. They are determined to save money and do all the work themselves, but it's a significant challenge as neither has any experience of fixing up - or living on - a boat, let alone any knowledge of plumbing, electrics, fabrication work or anything renovation-relevant