Off to the Wilds

Two settler brothers and two Zulu brothers agree to go into the African wilds on a trek to study natural history. The various adventures include encounters with snakes, rhino, hippo, giraffes, elephants, crocodiles, cataracts, tsetse fly, marauding native tribes, a bush fire, hundreds of miles of dreary grinding effort taking many months just to cover the ground, scorching heat, and sometimes cold.