In two landmark films for BBC2, Ben Fogle travels to Botswana and Australia, joining a pilot research study which aims to do the unthinkable – swim with crocodiles. Crocs have become the biggest killers of humans in Africa – up to 700 this year – so new research is vital. These ancient reptiles spend roughly 80% of their lives underwater, yet scientists have never studied them in their own environment – until now. During this awe-inspiring journey from the Okavango delta to the Northern Territories, Fogle gains unique unparalleled access to the monster of legend and gains a whole new perspective on these magnificent creatures.