Two middle-aged Americans, Daniel Schuman and his wife Laura, are among a truckload of international travelers on an overland safari through backcountry Zambia, Zimbabwe and Malawi in 1993. Camping in the bush in lion territory, digging out of muddy streambeds, making friends in remote villages, scouting game on the open veld, stalking an elephant in a mopani thicket on foot, confronting near-tragedy while crossing a crocodile-infested river in a...