Just days after his inauguration, President Trump asked what the hell is going on in in Chicago? In the windy city, the murder rate has surged in the past few years. Penny Marshall discovers that solving Chicago's gun crime problem is a complex and highly divisive issue. Steve Scott is in Berlin to meet former East German athletes who were subjected to state-sponsored doping in the 1970s and 80s, and hears how the drugs they took, often without their knowledge, have had chronic life-changing effects. Nina Nannar travels to the Moroccan desert city of Ouarzazate - which has had a starring role in hundreds of movies and TV series from Gladiator to Game of Thrones - to find out what life is like living on a real-life film set.