Sun's and Jin's lives are in danger; Kate and Sawyer must work in harsh conditions; Henry makes Jack a tempting offer that will be difficult to refuse.
Michael sets off by himself, determined to find Walt, but discovers that he is not alone; Sawyer and Jin's captors demand to be taken to the castaways' camp.
Sun wrestles with the thought of telling Jin a newfound secret that threatens to upset the entire balance of the survivors' community.
