 Sayid Jarrah ( Naveen Andrews ) , Kate Austen ( Evangeline Lilly ) and Boone Carlyle ( Ian <unk> ) attempt to find where the French transmission is coming from , so they make a plan to turn on <unk> at different points on the island in an attempt to triangulate the signal . At the caves , Charlie searches through Jack <unk> 's ( Matthew Fox ) medicine supply for something to ease his heroin withdrawal . When Jack catches him , Charlie says he has a headache and wants <unk> . 
