After the Fall

S6, E15: The fight for the future of Syria has turned the nation into a chessboard for competing world powers. But for civilians in the former ISIS capital city Raqqa, the ghosts of the past make the future hard to imagine. Isobel Yeung returns to Syria to tell the stories of those who were caught in the crossfire between the most feared terror group on Earth and the US-backed coalition, whose collateral damage destroyed most of the city.