Watch Panorama Season 64 Episode 25 Online

BBC reporter Rupert Wingfield-Hayes was expelled from North Korea for showing disrespect and `distorting facts'. He now tells the full story of his visit to the country and explores what his detention and interrogation by senior Korean officials say about this secretive state. He investigates the apparent upturn in the North Korean economy and asks if the signs of improvement in the capital Pyongyang are real.