It is the summer of 1964 during the Far Eastern war euphemistically called 'Confrontation.' A British Royal Marine patrol has orders to penetrate Indonesian Borneo to locate a river thought by Allied intelligence to be in use by the Indonesians to build up supplies before launching a major attack on Sarawak. Charged with this mission, Lieutenant Charles Kirton makes a most extraordinary discovery amid the dense mangrove swamps bordering a river...