Shot over several blocks throughout the year in both the Serengeti and Masai Mara national parks in the central African savanna, as we followed the Wildebeest migration. This is one of the wonders of the world, as herds of up to 100,000 cattle move together over the plains. We meet the poachers, the Masai herdsman, the scientists, the conservationists, the ecologists - all trying to make sense of this movement as old as time.

Recorded on a SD788T, Ambient sync boxes, Audio LTD2040 radio mics and Sanken COS-11 lavs, with a Sennheiser MKH50 as the main boom mic in a Rycote WS2