Enormous fires are destroying forests and communities around the world. Each year, 350 million hectares of forest go up in smoke, the equivalent of six times the size of France. Is there any way to stop it? In the US, the fire season now lasts up to two months longer than a generation ago, and the surface burnt annually has multiplied by three. This film sets out on a gripping journey of investigation from Europe to the US, Canada, Brazil and Indonesia to follow the work of a global team of dedicated firefighters, scientists and fire experts as they investigate why our forests are burning and make an unexpected discovery: if we want to save our forests, homes, health and our climate, we need to radically change our attitude towards fire and the way we fight wildfires.