When Steph looks for a man to con into funding her mission to rescue her half-brother Sean, she picks ambitious, womanising Angus. She doesn't reckon on falling in love with him, but she accepts his offer to sail her to Namibia in a small yacht. Sean has developed a computer program that will stop power and water reaching cities drowning in untreated sewage. This modern day Noah is intent on killing civilised man while preserving innocent bushmen. Angus has to stop scrambling up the corporate ladder and find the resources to rescue Sean from himself and a poacher, a corrupt politician and the CIA, which becomes involved when Sean's program halts civil aviation for 24 hours. Angus has help from an enigmatic Swede, a seventy-something Scot and a German doctor christened Adolph to remind him of the evils men are capable of. As usual, McPherson assembles a cast of interesting and believable characters to take on the opposition.