Lost (2004–2010)
8 user 1 critic

Ji Yeon 

Juliet exposes Sun's pre-island affair to Jin so that they won't defect to Locke's camp. Sayid and Desmond meet the ship's captain and discover that who is working on the boat.


Stephen Semel


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




Episode cast overview, first billed only:
Naveen Andrews ... Sayid Jarrah
Henry Ian Cusick ... Desmond Hume
Jeremy Davies ... Dr. Daniel Faraday
Emilie de Ravin ... Claire Littleton (credit only)
Michael Emerson ... Ben Linus (credit only)
Matthew Fox ... Dr. Jack Shephard
Jorge Garcia ... Hugo 'Hurley' Reyes
Josh Holloway ... James 'Sawyer' Ford (credit only)
Daniel Dae Kim ... Jin-Soo Kwon
Yunjin Kim ... Sun-Hwa Kwon
Ken Leung ... Miles Straume (credit only)
Evangeline Lilly ... Kate Austen
Rebecca Mader ... Dr. Charlotte Lewis
Elizabeth Mitchell ... Dr. Juliet Burke
Terry O'Quinn ... John Locke (credit only)


Sun tells Jin that she does not trust Daniel and Charlotte and she decides to move to Locke's camp. Juliet discovers her intention and tries to stop Sun telling Jin about her affair in Korea years earlier. In a flash forward, Sun, now back in South Korea, goes into labor and delivers the baby girl, Ji Yeon, while Sun insistently seeks a Panda for the newborn. Meanwhile on the freighter 'Kahana' near the island, Sayid and Desmond are introduced to Captain Gault immediately after the suicide of Regina, one of the crew-persons. Frank Lapidus begins to suspect something suspicious and tells Sayid and Desmond that the freighter their on is owned by Charles Widmore... Desmons recognizes this name. When Sayid and Desmond are sent to their new accommodations on the ship, they meet the janitor, Kevin Johnson, responsible for the cleaning of their cabin... and are shocked to see who it is. Written by Claudio Carvalho, Rio de Janeiro, Brazil

Plot Summary | Add Synopsis


TV-PG | See all certifications »





English | Korean

Release Date:

13 March 2008 (USA) See more »

Filming Locations:

O'ahu, Hawaii, USA

Company Credits

Production Co:

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

Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

1.78 : 1
See full technical specs »

Did You Know?


The first time that the protagonists of the flashback/forwards (Sun and Jin) are not those of the mainframe (Sayid and Desmond). See more »


Jin previously stated that Sun and Sawyer have been helping him speak/understand English. Yet, he reacts when Juliet says, "Your wife had an affair." Although, plausible that Sawyer taught him the word "Affair" (we know Sun wouldn't teach him); it's highly doubtful he learned the word and its meaning with his very basic English understanding. See more »


Bernard Nadler: Rose... has cancer. She's sick. Dying. Well, she was dying. She says she's better now. She says it's this place. The island. But when the camp split up, I was sure that she'd want to go with Locke. Why would she want to leave the island and risk getting sick again?
Jin Kwon: Then why do you stay with Jack?
Bernard Nadler: Because it was the right thing to do. Locke, he's a murderer. It's all about karma, Jin. You know karma? You make bad choices, bad things happen to you. But you make good choices, and then good...
See more »

Crazy Credits

The Producers gratefully acknowledge the cooperation of the people of Hawaii and their Aloha spirit. See more »


References My Neighbor Totoro (1988) See more »


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

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User Reviews

The New Born and the Janitor
19 March 2008 | by claudio_carvalhoSee all my reviews

Sun tells Jin that she does not trust on the new acquaintances Daniel and Charlotte and she decides to move to Locke's camp. Juliet discovers her intention and tries to stop Sun telling Jin about her affair. Meanwhile in a flash forward, Sun delivers the baby girl Ji Yeon while Sun insistently seeks a Panda for the new born. Sayid and Desmond are introduced to Captain Gault immediately after the suicide of the crewman Regina in the supply vessel Kahana owned by Charles Widmore; when they are sent to their new accommodations, they meet the janitor Kevin Johnson responsible for the cleaning of their cabin.

"Ji Yeon" together with "Eggtown" are the best episodes of the Fourth Season of "Lost" so far. We see that Sun and her baby survives and,Sun is another name officially included in the list of the Oceanic Six together with Hurley, Kate and Jack, but it is not clear what might have happened with Jin; but the most intriguing part of the episode is the identity of Ben's spy on board of the Kahana, Kevin Johnson. The new mystery about Jin is also very interesting in spite of the manipulative flash forward. My vote is nine.

Title (Brazil): Not Available

Note: On 14 April 2013, I saw this episode again on DVD.

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