Greg Jenner is joined by Dr Meleisa Ono-George and comedian Nathan Caton to learn all about the roots of Notting Hill Carnival, the largest street festival in Europe. We follow the history from 18th century Trinidad to 21st century London, looking not just at how carnival traditions have changed and developed into a world famous annual celebration but how they helped empower a generation to stand together against the racial injustice they faced in the UK.