Preparing to set off to conquer one of the most dangerous rivers in the world are three men and the lone girl in a six strong British team which aims to travel the length of the Blue Nile . All previous attempts have failed , one six years ago with two members of a team being murdered by local tribesmen . But 20 year old Joce Etherington , a Kensington secretary and her male colleagues are confident of success . Seen with her are , LtoR Alex Low , Tom Stacey and Bill Sutton the leader of the 瞿7000 expedition . Missing are Chris Loxton and Roger Burrows . They will use a light aircraft and an inflatable craft for the perillous journey of nearly 1000 miles . 23 February 1968