In February 2020 a shocking video began to circulate on Chinese social media. A group of African children are being instructed, by a voice off-camera, to chant phrases in Chinese. The kids repeat the words with smiles and enthusiasm — but they don't understand that what they're being told to say is "I am a black monster and my IQ is low." The clip ignited outrage in China and beyond. But no-one ever answered the crucial questions: Why was this filmed? Where was it shot? Who made it? These questions send BBC Africa Eye reporters Runako Celina and Henry Mhango on a journey into a Chinese video-making industry that exploits vulnerable children across the continent.

In north western Nigeria ultra-violent bandit gangs raid villages, attack drivers, abduct schoolchildren, and kill anyone who resists. But who are these men, and what do they want? A new documentary from BBC Africa Eye talks us into the heart of Nigeria's worst security crisis, and brings us face to face with some of the most feared bandit leaders in Zamfara state.