Zambia is home to a rare and coveted rosewood called mukula, but the country has been losing its treeline for years. The Zambian government put regulations and penalties in place to stop the illegal logging of this vital resource, but still, the deforestation continued. So what was accounting for the rapid disappearance of mukula? One undercover investigation exposed a chain of corruption and fraud – leading all the way to the top of Zambia’s government.