After the war, the three Williard brothers are bored with civilian life--until Jason Williard proposes an expedition to Lake Tele in the deepest, darkest part of the Congo. There, a purported dinosaur still lives, called Mokele Mbembe by the natives. The brothers hope to make a fortune by recording the dinosaur's activities and selling it to the highest bidder. That's if they manage to live through a wilder adventure than any war, considering that if they don't get eaten by the dinosaur, any one of other looming catastrophes don't kill them first.