Baby hippo Mafuta is in crisis. His pod has been taken over by a marauding male and his mother must take him far away from the river. Kali the lioness tries to dig the warthogs out of the den, but there's an unexpected twist when the rest of the pride gets involved. As the land dries, the lake becomes a place of refuge for the thirsty herds - but as things go from bad to worse, Bakari leads the baboons in search of better foraging, while Nalla and the elephants set off in search of water