Disturbing memories from Hurley's past cause him to struggle with a task he's assigned inside the hatch to watch over the food storage locker. Meanwhile Sawyer, Michael a ...

Jack, Locke and Kate learn more secrets about the hatch when Desmond tells them why he is there and to punch in the number code every 108 minutes or a reaction will occur ...

Michael is drowning and Sawyer saves him, while Jin is missing. Michael recalls his fight against Susan for Walt in the justice and the reasons for Michael's desperate ob ...

After blowing the hatch open, Jack recalls the accident of Sarah, as well as a meeting with a guy called Desmond and how successful the surgery was. Kate shows the word Q ...

A visitor to the encampment could be a threat to Claire's son. ...

The four castaways on the raft are surprised at sea by something unexpected: the appearance of four of the others from the island who abduct Walt. Meanwhile, Jack, Kate, ...

Danielle Rousseau arrives in the camp of survivors at the beach and advises that The Others are coming. There is black smoke in the sky, and they have three choices: run, ...

Jack suspects foul play when Michael becomes violently ill while building the raft and the suspects include both Kate and Sawyer. Meanwhile, more of Kate's background sto ...

After the death of Boone, tempers flare as the castaways' suspicions of each other grow, while an unlikely survivor (Shannon) vows revenge against Locke, unfairly blaming ...

Claire goes into labor while a helpless Charlie goes into panic mode, leading to Kate and Jin to assist with the delivery. Meanwhile, Locke goes missing after he returns ...

Locke and Boone build a trebuchet in an attempt to open the hatch, but Locke is injured when the trebuchet fails. Literally following a hallucination, Locke and Boone dis ...

When Hurley becomes obsessed with the mysterious French woman, he heads into the jungle to find her. Jack, Sayid and Charlie have no choice but to follow. Hurley's backgr ...

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 ...

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 wit ...

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 again ...

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 ...

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, ...

When the asthma medicine of Shannon Rutherford finishes, she has a chronic respiratory attack. Her brother Boone Carlyle convinces the survivors that James Sawyer Ford ha ...

Dr. Jack Shephard is not able to save a survivor drowning in the sea and he becomes affected by the incident and the pressure of the community pointing him as a leader. J ...

Flashback to Locke's life before Flight 815: his job, time in Australia, the crash...and a major secret is revealed. The camp is invaded and Sawyer's scavenging falls und ...

The U.S. marshal's assignment is revealed. Later, there is a difference of opinion between Jack and Sawyer as to how to help the critically injured marshal. Flashback to ...

Jack, Kate and Charlie return to the group, but the transceiver is broken. Sayid Jarrah fixes the apparatus and organizes an expedition with Kate, Charlie, Shannon Ruther ...

Following a horrific plane crash, 48 survivors of Oceanic Flight 815 from Sydney, Australia to Los Angeles, California, USA, find themselves on an uncharted tropical isla ...