Matt Baker and Alex Jones are joined by the meanest man in Texas, JR Ewing, otherwise known as actor Larry Hagman. Thirty years after the world was gripped by the Who Shot JR? storyline, why did the plot caused such a furore? Plus a family from Crewe whose visit to the set made the newspaper headlines in Dallas. Mike Dilger investigates the spread of a potentially dangerous caterpillar in British woodland and Marty Jopson has the story of one inventor who risked his life to save hundreds of thousands of people around the globe.