Around 6000 of Sudan's cattle raiding Nuer tribe are on the hunt for their foes, the Murle tribe. As 100,000 women and children flee, all can remember previous scorched earth attacks.The rebel SPLA movement has been fractured by a split in its leadership encouraged by Khartoum and has now disintegrated along tribal lines.The Nuer and Dinka tribes - at peace with each other for many years - are now at war. We go into the marshes of southern Sudan - home of the Dinka - to witness the trail of death caused by the new fighting. On the edge of the marshland a vulture picks at a human corpse. The more fortunate subsist on a barely edible paste made from water lily seeds. Includes interviews with SPLA leader Colonel John Gurang and Commander Riak Machar, leader of the breakaway rebels.