A specialist wildlife cameraman from the BBC's Planet Earth series arrives at the park attempting to film Longleat's fastest mammals, but will his high-tech equipment be able to match the explosive power of the cheetahs? The park is mobilised and the vet has been called because one of the roan antelope is in trouble and needs an emergency procedure. Meanwhie, Kate Humble and Ben Fogle hear the results of a leading expert's study into the wellbeing of Anne the former circus elephant - how much has she improved, and what more can be done to help her?

A troop of marmosets find themselves coming under attack from a murder of crows. Jean Johansson tries to get the Siberian tigers to cool off in their pool, Kate discovers why the park's pelican expert has won a major award, and Ben finds out which part of a fruit cocktail the lemurs love the most. Meanwhile, a carefully selected group of keepers are heading to the front line of wildlife conservation to get an unprecedented insight into the animal that they care for in the UK, and they meet the army of experts required to keep these precious creatures safe in the Kenyan wilderness.