TV-14
S1 • E1
Forty-eight survivors of an airline flight originating from Australia, bound for the U.S., which crash-lands onto an unknown island 1000 miles off course, struggle to figure out a way to survive while trying to find a way to be rescued.
S1 • E2
Having retrieved the plane tranceiver, a group of survivors try to transmit a signal, only to receive a strange transmission from another inhabitant.
S1 • E3
Jack and Hurley discover an alarming secret about Kate, while the marshal's life hangs in the balance.
S1 • E4
When the survivors run out of food, Locke, Kate, and Michael go out hunting for boar. Michael gets injured, so he and Kate go back. But Locke stays out hunting, and ends up running into the creature living in the jungle.
S1 • E5
Jack begins to experience visions of his father. Things go wrong when he runs into the jungle after him. Claire has difficulties with her pregnancy.
S1 • E6
Jin attacks Michael for seemingly no reason; Jack wants to move the survivors over to the caves, although some people disagree.
S1 • E7
Charlie begins a journey of withdrawal from drugs aided by Locke, whose true motive is a mystery. Jack is buried alive in a cave collapse.
S1 • E8
Shannon is having an asthma attack and Boone is sure that Sawyer has her medication. As Kate's way of dealing with this situation doesn't work, Sayid takes things into his own hands.
S1 • E9
Sayid's life is in danger after finding the source of the French transmission, while Hurley hatches a ridiculous plan to make life more civilized.
S1 • E10
Claire has a horribly realistic nightmare about her baby being harmed, while flashbacks reveal her troubled past.
S1 • E11
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.
S1 • E12
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.
S1 • E13
Locke plans to teach Boone a lesson, when he learns that Boone wants to share their secret with Shannon.
S1 • E14
A mysterious island beast reappears when Michael and Locke clash. Sayid enlists Shannon to help decipher the French woman's map.
S1 • E15
After Claire returns with no memory since the flight, Jack and Locke form a plan against her kidnapper, who threatens to kill the other survivors.
S1 • E16
Sawyer believes that a boar is harassing him. So he and Kate go to find it. They bond on the journey. They run into Locke, who tells them a story that seems to mean something to Sawyer.
S1 • E17
When the raft the survivors have been building burns down, Michael accuses Jin of sabotage. Sun makes a surprising revelation.
S1 • E18
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.
S1 • E19
Locke thinks he knows how to get the hatch open, and he and Boone venture inland. Jack is reluctant to help Sawyer get glasses.
S1 • E20
Claire goes into labor while a helpless Charlie goes into panic mode. Meanwhile Locke is missing, Jack tends to a wounded Boone and Sayid presents Shannon with a romantic surprise.
S1 • E21
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.
S1 • E22
Jack suspects foul play when Michael becomes violently ill while building the raft. Meanwhile a secret from Kate's past is revealed, the mysterious hatch is shown to a few of the survivors, and Walt gives Locke a warning.
S1 • E23
The French woman arrives at the camp with a dire warning about a group of survivors known as the Others.
S1 • E24
The castaways on the raft are surprised at sea by something unexpected.
S1 • E25
A visitor to the encampment could be a threat to Claire's son.
Hugo 'Hurley' Reyes
James 'Sawyer' Ford
Sun-Hwa Kwon
Kate Austen
John Locke
Sayid Jarrah
Jack Shephard
Jin-Soo Kwon
Claire Littleton
Benjamin Linus