Lost

Jack, Locke and Kate explore the mysterious hatch but Jack decides to wait before going down into the hat...

With the abduction of Walt fresh on their minds, their raft destroyed, and Jin missing, Michael and Sawye...

Michael, Sawyer, and Jin find themselves prisoners after they encounter what they believe to be a group o...

Hurley struggles with an assigned task inside the hatch as he flashbacks to disturbing memories in his li...

The tail-section survivors trek back to the southern beaches of the Island, but encounter trouble as Mich...

Sawyer's wound becomes life-threatening as he, Michael and Jin make their way through the interior of the...

The harrowing first 48 days in the lives of the tail section survivors are revealed. Flashbacks reveal th...

Violence erupts when Ana Lucia and her group stumble upon Sayid and the other castaways on the island. An...

As Kate’s backstory continues, her original crime is revealed. She thinks something is haunting her throu...

When Eko finds Charlie's Virgin Mary statue, he demands that he take him to where he found it at once. Mi...

Jack, Locke and Sawyer follow after a determined Michael after he heads into the jungle toward the dreade...

When Charlie's vividly surreal dreams lead him to believe Claire's baby, Aaron, is in danger, Locke suspe...

Some of the island survivors fear that "The Others" may have returned when Sun is greatly injured during...

After Sun is attacked, some of the survivors begin to think that one of the "other survivors" might be on...

A mysterious illness that baby Aaron suddenly contracts sends a desperate Claire, Kate and French woman D...

Sun comes to the realization that she might be pregnant. She struggles on whether to tell Jin about the s...

When the hatch suddenly takes on a life of its own, Locke is forced to enlist the help of an unlikely all...

Libby lends a helping hand to Hurley to support him when he begins to think the island is having a strang...

Rose is surprisingly and vehemently opposed to Bernard's plan to create an S.O.S. signal; romantic sparks...

After finding an exhausted Michael in the forest, Jack and Kate bring him back to the main camp. When he...

Mr. Eko has dreams about his brother leading him somewhere. He seeks Locke's help in finding a secret loc...

A determined Michael convinces Jack and several castaways to help him rescue Walt from "The Others." With...

After discovering something odd just offshore, Jack and Sayid come up with a plan to confront "The Others...

After discovering something odd just offshore, Jack and Sayid come up with a plan to confront "The Others...

Jack, Kate, and Sawyer are prisoners of the mysterious "Others." After their captors drug them and take b...

Sun and Jin's lives are put in danger when Sayid tries to locate Jack and the other missing castaways. Sa...

Locke, Eko and Desmond are found scattered about the island after the implosion of the hatch. Locke recei...

The Others prevent Sawyer and Kate from escaping, leaving Sawyer perplexed by the extent of the measures...

A delirious Eko wrestles with past demons; some of the castaways go to the Pearl station to find a comput...

Jack makes a decision regarding Ben's offer. Sawyer's life is placed in danger when Pickett decides to ma...

Jack has the Others in a desperate situation as he holds Ben's life in his hands. Meanwhile, Kate and Sa...

After Desmond rescues Claire from drowning, Charlie gets Hurley to help him find out why Desmond has seem...

As Kate and Sawyer journey back to the main island with Karl, who is exhibiting effects of the brainwashi...

Kate is still struggling over their decision to leave Jack in the hands of the Others as she and Sawyer r...

On their mission to rescue Jack, Kate, Sayid, and Locke stumble upon a mysterious structure surrounded by...

Claire has an idea to send a message to the outside world. Charlie, however, is resistant to the idea, an...

When Kate and Locke arrive at the Others' camp, Ben promises to tell Locke the island's secrets as long a...

As the truth about Sun's kidnapping by "the Others" comes to her attention, Hurley becomes suspicious of...

Kate and Juliet are stranded in the jungle after Kate learns that there is a traitor in the survivor's mi...

The celebration of Jack's return is cut short when he arrives at the beach with an Other, Juliet, whose f...

Desmond convinces Hurley, Jin, and Charlie to follow him on a trek through the jungle after he receives a...

Sun allows Juliet to examine her when she learns that all of "The Others" pregnant woman died before they...

After abandoning the Others, Locke takes Sawyer on a trek through the jungle to help him eliminate a comm...

Ben unwillingly divulges information to Locke about the island, taking him on a journey to various locati...

While Jack devises a plan to do away with "The Others" once and for all, Sayid uncovers a flaw in "The Ot...

The season 3 finale finds the castaways preparing for an invasion by the slightly less mysterious Others,...

The season 3 finale finds the castaways preparing for an invasion by the slightly less mysterious Others,...

They thought they had met the enemy. They thought they had seen evil. They thought wrong. As the new seas...

The survivors begin to question the intentions of their supposed rescuers when four strangers arrive on t...

Locke's hostage may be the key to getting off the island, so Sayid and Kate go in search of their fellow...

Kate needs to get information out of the hostages, but it may jeopardize her standing with Locke -- as we...

Sayid and Desmond hit a bit of turbulence on the way to the freighter, which causes Desmond to experience...

Juliet receives an unwelcome visit from someone from her past and is given orders to track down Charlotte...

Juliet is forced to reveal some startling news to Jin when Sun threatens to move to Locke's camp. Meanwhi...

Sayid confronts Ben's spy on the freighter, and Ben urges daughter Alex to flee Locke's camp in order to...

Jack tries to discover the identity of a body that has washed ashore. Meanwhile, Locke's camp is attacked...

Kate and Juliet must learn to work together when Jack's health is seriously compromised, and something go...

Locke finds out where Jacob's cabin is. Life on the freighter becomes dangerous.

Sayid goes back to the island to bring the rest of the people to the freighter. Ben, Locke, and Hurley go...

The face-off between the survivors and the freighter people continues, and the Oceanic Six find themselve...

The remaining island survivors start to feel the effects of the aftermath of moving the island, and Jack...

Hurley and Sayid are on the run from the cops after stumbling into trouble at the safehouse; the island s...

Desmond looks for a woman who might be the key to helping Faraday stop the island's unpredictable movemen...

Kate discovers that someone knows the secret of Aaron's true parental lineage. Meanwhile, the dramatic sh...

Locke shoulders the burden of ending the island's increasingly violent movements through time; Ben is sty...

The members of Oceanic 6 discover how to get back to the island, but not all of them want to return.

Locke's mission off the island as Jeremy is revealed.

Sawyer perpetuates a lie with some of the other island survivors in order to protect themselves from mist...

After meeting old acquaintances Sawyer is forced to continue lying to protect them.

Everyone on the island is at risk when one of the survivors decides to go against them and taking matters...

Kate goes to extreme measures to save Ben's life when Jack refuses to help. Meanwhile, Kate begins to tel...

To atone for sins of the past, Ben must attempt to summon the smoke monster in order to be judged.

Suspicions about a possible breach intensify after Ben is taken from the infirmary, and a reluctant Miles...

On the 100th episode milestone for the series, the time of reckoning has begun when Daniel Faraday comes...

Jack and Kate find themselves at odds over the direction to take to save their fellow island survivors, L...

Jack's decision to put a plan in action in order to set things right on the island is met with some stron...

Jack's decision to put a plan in action in order to set things right on the island is met with some stron...

Two outcomes of the detonation of the hydrogen bomb are presented. Flight 815 lands safely at LAX, where...

Jack, Sawyer, Kate, Miles and Hurley, struggling to save Sayid, face an ancient secret. Meanwhile, a fake...

When Sawyer escapes from the temple, Kate and Jin are sent to bring him back. Meanwhile, the Others deter...

On the island, the Man in Black attempts to recruit Sawyer in his attempt to leave the island, while an i...

On Jacob's orders, Hurley leads Jack to a lighthouse. Meanwhile, Claire questions an Other she has captur...

After recruiting Sayid to his cause, the Man in Black issues an ultimatum to the Others: either join him...

Ilana discovers Ben killed Jacob, so she plans to kill him. Meanwhile, Jack, Hurley and a suicidal Richar...

The Man in Black sends Sawyer on a reconnaissance mission to Hydra Island, where he discovers that Charle...

Richard Alpert's back story is shown: In 1867, he is brought to the island on the Black Rock as a slave....

After Jin is kidnapped and taken to Hydra Island by Widmore's team, the Man in Black confronts Widmore. O...

On the island, Widmore subjects Desmond to a large amount of electromagnetic energy as an experiment. In...

In order to prevent more loss of life, Hurley leads the other survivors to speak with the Man in Black. I...

The survivors split into two groups; one led by Sawyer, the other by the Man in Black. Sawyer's group tra...

After the remaining survivors are reunited, Sawyer and Jack hatch a plan to divert the Man in Black's att...

Jacob and the Man in Black are revealed to be twin brothers. They are raised by a mysterious woman who is...

Ben finally takes his revenge on Widmore after accepting the Man in Black's request for assistance. Jacob...

For different reasons, Jack and the Man in Black both use Desmond to extinguish the light at the heart of...