Plot summary
Cassidy Phillips, a woman Sawyer is seeing, asks him to teach her conning, unaware that he and his partner are conning her. Having developed feelings for her, Sawyer tries to pull out, but his partner threatens Cassidy so he goes through with it. He gets her to flee with a bag of her money, only to give her a fake, taking the real money when she leaves. In the present, Jack takes Sawyer's stolen painkillers to keep in the Swan, so he mentions the army Jack and Ana Lucia are trying to form to Kate.
Someone tries to kidnap Sun, and Kate determines it was not the Others, theorizing Ana Lucia did it to sow fear. She relays this to Jack, then asks Sawyer to alert Locke, who asks Sawyer to take over the computer while he hides the guns. While Jack and Locke argue, Sawyer reveals he has found the guns and hidden them for himself. Charlie is revealed to have followed Locke while he hid the guns and attacked Sun, working with Sawyer to humiliate the former.
Credits
Adapted from Wikipedia contributors, Lost season 2. HTML formatting and reference markers removed.