Lost (2004–2010)
4 user 2 critic


An unlikely person helps Desmond save the life of the mysterious woman who crashed onto the island, and Juliet helps Sun find out whether she conceived on the island or before the plane crash.


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




Episode cast overview, first billed only:
Naveen Andrews ... Sayid Jarrah (credit only)
Henry Ian Cusick ... Desmond Hume
Emilie de Ravin ... Claire Littleton
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
Evangeline Lilly ... Kate Austen
Elizabeth Mitchell ... Dr. Juliet Burke
Dominic Monaghan ... Charlie Pace
Terry O'Quinn ... John Locke (credit only)
Andrew Divoff ... Mikhail Bakunin
Byron Chung ... Woo-Jung Paik


Juliet invites Sun along the night to submit to a medical ultrasound examination in a facility of The Others hidden in an old Dharma station to determine the date of conception of the fetus. Juliet discloses that all women that became pregnant in the island had died, driving Sun to a dilemma about who could be the father of the baby. Sun recalls when she was blackmailed by a mysterious woman about the origins of Jin and his impoverished background. Meanwhile in the jungle, Desmond, Charlie, Jin, and Hurley capture Mikhail, the mysterious Russian man (first presumed dead), and he makes an offer: he could heal the wounded woman, named Naomi who parachuted onto the island via helicopter, if they release him after the conclusion of the medical procedures. Written by Claudio Carvalho, Rio de Janeiro, Brazil

Plot Summary | Add Synopsis


TV-14 | See all certifications »





English | Korean | Italian

Release Date:

25 April 2007 (USA) See more »

Filming Locations:

O'ahu, Hawaii, USA

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:




Aspect Ratio:

1.78 : 1
See full technical specs »

Did You Know?


The title of this episode stands for "date of conception." See more »


Desmond, Charlie, Hurley and Jin are somewhere in the jungle standing around Naomi who has been wounded after parachuting from a helicopter, when Mikhail suddenly appears. Jin chases Mikhail through the jungle for at least 30 seconds and Desmond and Charlie follow. After Jin catches and subdues Mikhail, Desmond and Charlie walk up. The scene suddenly shifts to Desmond holding a flare gun to Mikhail's chest, but now Hurley is there and they're still close enough to where Naomi was lying on the ground to hear her moaning and speaking in different languages. Not enough time has elapsed for them to have walked back to where they left Hurley and Naomi. See more »

Crazy Credits

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


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

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Date of conception
14 May 2018 | by TheLittleSongbirdSee all my reviews

When 'Lost' was in its prime, it was must-watch television. Remember first watching it, found it remarkably easy to get into, was hooked from the start and was on Season 3 by the end of one week. The general consensus is that the final season is a disappointment and cannot disagree.

"D.O.C." is not one of the best episodes of 'Lost'. It's not even one of the best episodes of Season 3. It's still a pretty good and very interesting episode however and is nowhere near one of the show's worst, as far as the previous episodes go it is significantly better than "Fire + Water" and especially "Stranger in a Strange Land" (a 'Lost' low-point), which were one of the few not good episodes of the early seasons to me.

It is not a perfect episode by all means. It's occasionally a little soap operatic, but it does a far better job than "Catch-22" advancing storylines and the mystery element.

Sun is the most interesting she's been in a while and quite rootable. The flashback and Sun's dilemma are also intriguing, it's slightly soap operatic in the dialogue but doesn't reiterate what we already know and instead builds upon it, and the ending is chilling.

All the acting is good to great. Elizabeth Mitchell is as always terrific as Juliet.

Visually, there is a lot of style and atmosphere, the music is chilling and understated, the writing is thought-provoking enough and the direction has alertness and control.

In conclusion, very good. 8/10 Bethany Cox

0 of 0 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 4 user reviews »

Contribute to This Page

Free Movies and TV Shows You Can Watch Now

On IMDb TV, you can catch Hollywood hits and popular TV series at no cost. Select any poster below to play the movie, totally free!

Browse free movies and TV series

Stream Trending TV Series With Prime Video

Explore popular and recently added TV series available to stream now with Prime Video.

Start your free trial

Recently Viewed