Kate Adie introduces stories from Syria, Ukraine, the USA, China and Germany.

Syrians took to the streets to celebrate one year since the fall of the Assad regime, but in the background post-war reconstruction has been slow and sectarian violence is on the rise. Lina Sinjab has been travelling the country and reflects on the challenges ahead.

Despite the constant threat of drones and missiles, many Ukrainians are finding ways to carry on with their lives - including the country's artists and musicians. Marcel Theroux recently visited Chernivtsi in western Ukraine, to attend the opening night of an unexpected musical gem.

Just a few years ago, the city of El Paso in Texas declared a state of emergency as local shelters struggled to cope with the influx of migrants crossing the border from Mexico. Today, the picture is very different with the flow of migrants now a trickle. Bernd Debusmann looks at the impact of Donald Trump's immigration crackdown.

China's mighty Yangtze river is one of the world's busiest shipping lanes, but the wildlife living in the river is struggling for survival with many native species already extinct. Stephen McDonell met a team of scientists trying to save the endangered finless porpoise.

The German city of Chemnitz is currently a European Capital of Culture, and among the celebrations is an exhibition of a cultural icon - the Trabant. Adrian Bridge explores the history of East Germany's car culture - and how it provided some welcome respite from the spying eyes of the Stasi.

Series Producer: Serena Tarling