After burying one of their own, tempers flare as the castaways’ suspicions of each other grow — and an unlikely survivor vows revenge. Meanwhile, Claire and Charlie struggle to calm her newborn.

Claire goes into labor while a helpless Charlie goes into panic mode. Meanwhile Locke is missing, Jack tends to a wounded survivor and Sayid presents Shannon with a romantic surprise.

Locke begins to suffer physical difficulties as he and Boone try to find a way into the hatch; Jack is reluctant to offer assistance when Sawyer begins to experience excruciating headaches.

When Hurley becomes obsessed with the French woman and heads into the jungle to find her, Jack, Sayid and Charlie have no choice but to follow. Meanwhile, Locke asks Claire to help build a mysterious item.

When Jin Kwon is having a serious quarrel with his wife Sun Kwon, Michael Dawson defends her. Later, when Michael’s raft is set afire and Jin has his arms injured by heat, Michael and Sawyer blame him for the incident. Sun finally reveals h...

James “Sawyer” Ford wakes up from a nightmare with a boar inside his tent. He finds his canvas in the woods, but is attacked by the animal. He decides to chase the boar with Kate Austen following its track in the forest. Along their hunting...

After the missing Claire returns with no recollection of what has happened since before the doomed flight of Oceanic 815, Jack and Locke formulate a plan of defense against her kidnapper, the mysterious Ethan Rom, who threatens to kill off ...

John Locke is teaching Walt Lloyd to throw knives, and Michael Dawson feels jealous with the situation. He forbids Walt to meet Locke, and recalls his romance with Walt’s mother Susan Lloyd (Tamara Taylor), a overachieving executive who too...

Boone Carlyle is jealous of Sayid Jarrah, because he becomes close to his half-sister Shannon Rutherford. Boone tells John Locke that he wants to reveal the secret about the hatch in the woods to Shannon. Locke hits Boone, heals his head wi...

Kate and Sawyer discover a briefcase and the race begins to win ownership of it. Charlie is still depressed over Claire, and is given a sharp talking to by Rose.

Jack, Kate, Locke and Boone go after Ethan, Claire and Charlie. They separate, and while Jack and Kate confront Ethan, Locke and Boon find another mystery at the jungle. Flashbacks reveal more about Jack’s past with his dad.

Claire begins to have reoccurring nightmares which one night result in her turning up with bloody hands, which leads Charlie to find out what is really going on. However, Jack isn’t sure that anything really happened. Meanwhile, Hurley find...

Ashamed with his behavior torturing Sawyer, Sayid Jarrah decides to leave the group of survivors and travel alone through the island, trying to find the source of transmission and map the place. He is arrested and tortured by the French sur...

Shannon his having an asthma attack, and Boone is sure that Sawyer has her medications- but he won’t give it. As Kate’s way to deal with this situation doesn’t work, Sayid takes things into his own hands… and IT WILL NOT end good.

Charlie Pace is obliged by John Locke to stay clean and feels the effect. Meanwhile, Sayid Jarrah, Kate Austen and James “Sawyer” Ford tries to triangulate the French distress signal through antennas to find where the transmission source is...

Troubles escalate when Jin attacks Micheal for no reason. Soon, another secret is revealed when Sun reveals to Michael that she actually speaks English and is afraid of her controlling and jealous husband. Meanwhile, Jack goes with Kate, Lo...