When Jack upset Charlie by telling him to move his guitar , Charlie angrily shout at him , causing the entrance of the cave they are in to collapse . Charlie manage to escape , but Jack is trapped inside . Using his construction experience , Michael Dawson ( Harold Perrineau ) lead the rescue attempt with Steve Jenkins ( Christian Bowman ) and Scott Jackson ( Dustin Watchman ) . In the jungle , James " Sawyer " Ford ( Josh Holloway ) go to tell Kate ( who is traveling to set up her antenna for the triangulation attempt ) about Jack 's predicament , but decide against it because he doesn 't like Kate 's hostile attitude . Charlie tell Locke about Jack 's situation , but reveal the real reason for his going to Locke is to ask for his drugs a second time . Locke show Charlie a moth cocoon , and explain that he could help the moth by slitting the cocoon and letting the moth free , but it would not survive because it would be too weak . Instead , the moth need to struggle to break free . Nature and struggle make people stronger , Locke say , indicating to Charlie that he need to fight through his suffering .