"The Moth" is the seventh episode of Season 1 of Lost. Charlie struggles with withdrawal symptoms after giving his remaining heroin stash to John Locke. Elsewhere, Sayid sets his plan in motion to isolate the origin of the French distress signal, in the hope that it could provide means of finding a way off the Island. Flashbacks in this episode center around Charlie's struggles with the temptations involved with being a rock star and also his older brother's massive ego.