Lost (2004–2010)
26 user 6 critic

Across the Sea 

The story of how Jacob and his brother came to the island, their uneasy relationship with their "mother," their eventual falling-out, and revelation of what Jacob was on the island to protect.


Tucker Gates


Jeffrey Lieber (created by), J.J. Abrams (created by) | 3 more credits »




Episode cast overview, first billed only:
Naveen Andrews ... Sayid Jarrah (credit only)
Nestor Carbonell ... Richard Alpert (credit only)
Henry Ian Cusick ... Desmond Hume (credit only)
Emilie de Ravin ... Claire Littleton (credit only)
Michael Emerson ... Ben Linus (credit only)
Jeff Fahey ... Frank Lapidus (credit only)
Matthew Fox ... Dr. Jack Shephard (archive footage)
Jorge Garcia ... Hugo 'Hurley' Reyes (credit only)
Josh Holloway ... James 'Sawyer' Ford (credit only)
Daniel Dae Kim ... Jin-Soo Kwon (credit only)
Yunjin Kim ... Sun-Hwa Kwon (credit only)
Ken Leung ... Miles Straume (credit only)
Evangeline Lilly ... Kate Austen (archive footage)
Terry O'Quinn ... John Locke (archive footage)
Zuleikha Robinson ... Ilana Verdansky (credit only)


A shipwrecked pregnant woman named Claudia comes to the island and is rescued by an older woman and immediately after she delivers two babies: Jacob and another boy; then, the woman kills Claudia. She raises the boys as if they were their sons and one day they see three men in the island. She shows a cave with a bright light inside and she tells them that they shall protect this light. One day, Claudia appears to her other son and she shows the survivors of the shipwreck living in the other side of the island. She tells what happened to her and the boy calls Jacob to go with him to live with the other people; however Jacob decides to stay with his foster mother. Jacob secretly visits his brother to see where his people are bad or not. His brother tells that will leave the island and Jacob tells to his stepmother. She destroys all the humans and assigns Jacob to protect the light in the cave. Jacob's brother kills their stepmother and Jacob throws his brother in the cave, where he ... Written by Claudio Carvalho, Rio de Janeiro, Brazil

Plot Summary | Plot Synopsis


TV-14 | See all certifications »

Did You Know?


In the DVD audio commentary, Carlton Cuse and Damon Lindelof said that, although they supposed she wasn't available, they asked the casting director to contact Allison Janney for the role of Mother, saying that they wanted "someone like Allison Janney". A few days later, Janney was shooting the episode. See more »


Man in Black: Don't. I beg you don't do this. She burned them. She was crazy. She burned them all. You can't kill me Jacob. She's made it that way. You can't.
Jacob: Don't worry brother. I'm not going to kill you.
Man in Black: She brought you back here.
Jacob: Yes.
Man in Black: Why would she?
Jacob: Because I have to protect it now. You want to find the light? You want to leave this place brother? Go!
See more »


Referenced in The Tonight Show with Jay Leno: Episode #19.203 (2011) See more »


End Title
Written by Michael Giacchino
Performed by The Hollywood Studio Symphony
See more »

User Reviews

Misplaced Jacob childhood story, jarring fantasy universe, rushed development and editing, rotten installment
12 May 2010 | by igoatabaseSee all my reviews

The Candidate's ending was so intense that I was expecting Across the Sea to directly revert to it. Instead we were teleported in Jacob's past. It reminded me of Ab Aeterno but when Richard's story was well told and perfectly mixed with the on-going events this one seemed completely misplaced as we hadn't seen Jacob for weeks. And Desmond, whom I consider to be the new Jacob, wasn't even featured !

First its surreal fantasy universe jarred with the past episodes even if there's nothing realistic about Black Locke. However it made me regret the mind blowing flashbacks of the 3rd season and Daniel Faraday's twisted theories. Second I didn't like the mother nor the actress who portrayed her. I just found her character unauthentic and not charismatic enough to be Jacob's mum. Third the transition between his childhood and adulthood periods was too brutal. Wait, there was no transition. One minute he was a boy, the next a man. I wish we learned more about what he did to become a man : Hunting, exploring, building crazy inventions… Fourth the editing was so poor that it almost ruined the creativity of past installments. But no I can't accept that such an awkward work shadows the astonishing results we had to experience so far. Mirror connections ? Gone. Dual stories ? Gone. Synchronized editing ? Just forget it ! Mixing some scenes with first season ones was just plain lazy. Jack and Kate popped up from nowhere and their magical appearance felt like an annoying subliminal advertisement. These scenes were so rushed that it made things even worse when I thought the episode had already reached the bottom of the barrel.

Was it Lost ? Definitely not the one we have been accustomed to. Season 6 had been so strong and captivating so far that I never thought I would have to endure such a disappointing illusion. Of course the whole yin-yang and quest of light elements were interesting but I just didn't like how they were served to us. To sum things up I prefer when the story wilds my senses and mesmerizes my imagination than getting cold and questionable answers. Maybe the upcoming What They Died For will make me regret my decision of rating it so poorly but for the moment the best word to describe how I feel is deception. A tremendous and bitter deception !

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English | Latin

Release Date:

11 May 2010 (USA) See more »

Filming Locations:

O'ahu, Hawaii, USA

Company Credits

Production Co:

Bad Robot, ABC Signature See more »
Show more on IMDbPro »

Technical Specs


Sound Mix:




Aspect Ratio:

1.78 : 1
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