A story of a historical adventure set around the search for soldiers lost in the Vietnam war, the Mekong River Phuri tribe and the great Naga said to be protecting the land. A Thai-American company begins to build a bridge across the Mekong River connecting Thailand and Laos. Dave Shaun—an American and former soldier in the Vietnam war—is currently the construction site manager for the bridge. Kimberly Baker is a professor researching the ancient Phuri tribe.