Lost Season 4 in HD Streaming

Locke is enlightened as to the whereabouts of Jacob's cabin, and life aboard the freighter becomes perilous.

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 the other survivors unless Claire is returned to him. Meanwhile, the disappointment Charlie feels when Claire does not remember him triggers recollections of Lucy, a woman he had let down in the past back in England where Charlie ruined their engagement so he could steal money from her to fuel his escalating heroin addition.

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.

After Mr. Eko has a vision of his dead brother, he sets out to return to the site of his plane crash.

Juliet is forced to reveal some startling news to Jin when Sun threatens to move to Locke's camp. Meanwhile, Sayid and Desmond begin to get an idea of the freighter crew's mission when they meet the ship's Captain.

Tempers flare when Ana Lucia and her group stumble upon Sayid and the other castaways.

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.

This episode explores the series in a way that will bring new viewers up to date -- but which current viewers will also find illuminating - in anticipation of the fourth season premiere episode.

Juliet receives an unwelcome visit from someone from her past and is given orders to track down Charlotte and Faraday in order to stop them from completing their mission -- by any means necessary. Meanwhile, Ben offers Locke an enticing deal.

Mr. Eko enlists Locke to help find a secret location he believes houses answers to the island's mysteries. Meanwhile, Jack, Sawyer, and Kate struggle to cope with the horrific situation in the hatch following the escape of "Other" Henry Gale, and of the shooting deaths of Ana-Lucia and Libby, unaware that it was Michael who is responsible.