 A scientist, Dr. True, has developed a process for extracting gold from seawater. He dies just as he is performing a demonstration for Solo and Kuryakin. His death has been arranged by Thrush. However, Dr. True has scattered his formula to "the four winds" -- stepdaughters he has around the world. Both UNCLE and Thrush pursue the formula. As part I ends, Solo, Kuryakin and Sandy, Dr. True s natural daughter, are left tied up in an UNCLE plane by Thrush operatives. The Thrushman parachute to safety as the UNCLE plane flies on with no one at the controls.