In1998,wildlifeenthusiastandphotographerChrisPackhamhadaremarkableencounterwiththeOrangRimba,atribeofhunter-gatherersintherainforestsofSumatra,Indonesia.Itwasthefirsttimehehadeverseenpeoplelivinginperfectharmonywiththeirenvironment.OnephotographinparticularthatChristook,apictureofayoungtribalgirl,hassincebecomeimmenselyimportanttohimasabarometerofhowwearetreatingourplanet.Inthisreal-lifedetectivestory,withnocluesastoheridentityorwhereaboutsotherthanhisoriginalphotograph,ChrissetsofftoSumatra20yearsontotrytofindher,thegirlinthepicture.