Tanzanians are under siege from a plague of man-eating lions. The East African republic is home to more than one quarter of the world's lions, but until recently attacks on humans were few and far between. All of that has changed. Entire prides now consider humans fair game; over six hundred people have been killed by lions in Tanzania since 1990. Explore how and why lions are changing their behaviour to prey on humans and join a lion hunting team out to capture a man-eater who has been terrorising the region for too long.