The harrowing first 48 days in the lives of the tail section survivors are revealed. Flashbacks reveal the point of view of Ana-Lucia, Mr. Eko, Bernard and Libby and other…

As Kate’s backstory continues, her original crime is revealed. She thinks something is haunting her through Sawyer. Locke and Eko make an interesting discovery about the film, and Michael has…

Violence erupts when Ana Lucia and her group stumble upon Sayid and the other castaways on the island. Ana Lucia holds Sayid captive. Kate and Jack care for Sawyer when…

Hurley struggles with an assigned task inside the hatch as he flashbacks to disturbing memories in his life before the crash. Meanwhile, Sawyer, Michael and Jin learn the identities of…

Michael sets off into the jungle by himself determined to find Walt, but discovers that he is not alone. Meanwhile, Sawyer and Jin are ordered by their captors to take…

Sawyer’s wound becomes life-threatening as he, Michael and Jin make their way through the interior of the island with the tail section survivors. Meanwhile, Shannon is once again haunted by…

Jack, Locke and Kate explore the mysterious hatch but Jack decides to wait before going down into the hatch. Kate and Locke aren’t so patient. When Shannon chases after Vincent…

With the abduction of Walt fresh on their minds, their raft destroyed, and Jin missing, Michael and Sawyer fight for their lives in the middle of nowhere in the ocean…

Jack, Locke and Kate learn more secrets about the hatch. Meanwhile, after being beaten and taken captive, Sawyer, Michael and Jin wonder if their captors are fellow survivors or the…

The castaways on the raft are surprised at sea by something unexpected. Meanwhile, remaining islanders attempt to blow open the hatch, and a visitor to the encampment might be a…

Jack suspects foul play when Michael becomes violently ill while building the raft. The suspects include Sawyer and Kate, who compete for the last seat on the raft and do…

The castaways on the raft are surprised at sea by something unexpected. Meanwhile, remaining islanders attempt to blow open the hatch, and a visitor to the encampment might be a…

The French woman-Danielle Rousseau-shocks the survivors by showing up to the camp with a dire warning about “the Others” who are on the island, and the black smoke that precedes…

Jack tends to a severely wounded Boone after Locke returns him to the caves. In the confusion, Locke slips away to deal with his guilt over the crisis. Meanwhile, Claire…

After another funeral, tempers rise as the survivors’ suspicions of each other grow, and an unlikely survivor vows revenge. The events that landed Sayid on Flight 815 play out as…

Locke thinks he’s being sent a sign on how to get the hatch open, and he and Boone venture inland. Jack is reluctant to offer assistance when Sawyer begins to…

Kate and Sawyer divulge dark secrets to each other while tracking a renegade boar that Sawyer swears is purposely harassing him. Hurley and Sayid worry that Charlie is losing it…

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. Hurley flashes back to…

When the raft the survivors have been building mysteriously burns down, Michael is convinced that Jin is responsible for the sabotage, which only serves to escalate their rivalry. Meanwhile, Sun…

When Locke learns that Boone wants to share their “secret” with Shannon, Locke decides to teach him a lesson. This leads to Shannon’s life being placed in what seems like…

After the missing Claire returns with no recollection of what has happened since before she boarded the doomed Oceanic flight 815, Jack and Locke formulate a plan of defense against…

Violence ensues and a mysterious island beast makes a re-appearance when Michael and Locke clash over Walt’s upbringing. Meanwhile, Charlie is tempted to read the missing Claire’s diary, and Sayid…

Claire has a horribly realistic nightmare about her new baby being harmed or kidnapped. Flashbacks reveal Claire’s backstory: the former boyfriend who got her pregnant, then abandoned her, and the…

Survivors wonder why Charlie and Claire have been abducted – and by whom – and a search party ventures into the treacherous jungle to look for the pair. Suspicions focus…

Jack, Kate and Sawyer fight over possession of a newly discovered locked metal briefcase which might contain insights into Kate’s mysterious past. Meanwhile, Sayid asks a reluctant Shannon to translate…

Walt and the others are shocked when Michael is brutally beaten, but only the non-English-speaking Jin and Sun know the truth behind the attack. Meanwhile Kate, Jack, Sawyer and Sayid…

Charlie begins a painful journey of withdrawal from drugs, surprisingly aided by Locke, whose true motive for helping Charlie is a mystery. Meanwhile, survivors struggle to find and free Jack…

Shannon’s inhaler runs out and Boone believes Sawyer has the remaining three in his stash. When Sawyer refuses to give them up, Jack and Sayid resort to torturing Sawyer until…

Sayid’s life is placed in grave danger after he stumbles upon the source of the mysterious French transmission, the woman Danielle Rousseau (guest-star Mira Furlan). She was on the distress…

Jack and Hurley discover an alarming secret about Kate, as the marshal’s life hangs in the balance and he suffers a lot of pain. Meanwhile Kate, Charlie, Sawyer, Sayid, Boone…

The survivors are jolted awake in the middle of the night when wild island beasts (which are wild boars) invade the beach encampment. Kate and Michael join the mysterious Locke…

Jack is nearly delirious from lack of sleep and struggles to overcome the haunting events that brought him to Australia and, subsequently, to the island. Meanwhile, Boone gets caught in…

Stripped of everything, the 48 survivors scavenge what they can from the plane for their survival. Some panic. Some pin their hopes on rescue. A few find inner strength they…

Having escaped the “creature” and retrieved the plane transceiver, a group of the survivors travel to higher ground so they can transmit a signal. En route, they receive a mysterious…

Melanie embarks on her most dangerous mission yet, while Layton reckons with his personal choices.

An exchange is made between the two trains, but a far greater revelation might be just over the horizon.

Wanda addresses Vision’s worries when he grows suspicious of the neighbors’ strange behavior.

Disturbances on Halloween separate Wanda from Vision, who looks into anomalous activity in Westview.

The boundaries between military discipline and human desire are tested on a U.S. Army base that houses an elite unit of helicopter pilots trained to perform clandestine international and domestic…

The Shadow Raiders are sent on the mission they’ve been waiting for. Nora and Gallo get separated from their crew and find themselves in a precarious situation. Trapped, everyone fears…