Stacey Dooley discovers the shocking environmental impact of people's insatiable appetite for cheap clothing. She travels thousands of miles around the globe to see how toxic chemicals released by the garment industry are polluting waterways that millions of people rely on. She also witnesses the former Aral Sea, once one of the planet's largest bodies of fresh water, which is now reduced almost entirely to dust. These are shocking discoveries likely to make you think twice about whether you really need those new clothes.