Stephen Fry and zoologist Mark Carwardine search for animals on the edge of extinction. In Madagascar, Mark and Stephen search for the aye-aye, a peculiar lemur.

Stephen Fry and zoologist Mark Carwardine head to the ends of the earth in search of animals on the edge of extinction.

In Madagascar, the travellers encounter the biggest and the smallest lemurs on earth. But they are searching for the aye-aye, a peculiar lemur which, according to local legend, brings death to those who encounter it.