With a toddler and a new baby on the way, Johanna and Chris need to double their living space as they move from Paris to London for Chris's job in finance. The cool couple wants to find a family-friendly home that's also hip and close to the pubs and clubs. Their real estate agent navigates London's distinct neighborhoods, looking for a perfect balance between green space for the kids and nightlife for their parents. Can a happening family of four put down roots in trendy Shoreditch, or would the more sedate area of Islington be the better match for their new lifestyle? Find out as House Hunters International goes cool-hunting in London's most sought-after neighborhoods.