Lost (2004–2010)
6 user 3 critic

Deus Ex Machina 

Locke thinks he knows how to get the hatch open, and he and Boone venture inland. Jack is reluctant to help Sawyer get glasses.


Robert Mandel


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

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Episode cast overview, first billed only:
Naveen Andrews ... Sayid Jarrah
Emilie de Ravin ... Claire Littleton (credit only)
Matthew Fox ... Dr. Jack Shephard
Jorge Garcia ... Hugo 'Hurley' Reyes
Maggie Grace ... Shannon Rutherford (credit only)
Josh Holloway ... James 'Sawyer' Ford
Malcolm David Kelley ... Walt Lloyd (credit only)
Daniel Dae Kim ... Jin-Soo Kwon
Yunjin Kim ... Sun-Hwa Kwon
Evangeline Lilly ... Kate Austen
Dominic Monaghan ... Charlie Pace (credit only)
Terry O'Quinn ... John Locke
Harold Perrineau ... Michael Dawson
Ian Somerhalder ... Boone Carlyle
Swoosie Kurtz ... Emily Locke


Locke and Boone build a trebuchet in an attempt to open the hatch, but Locke is injured when the trebuchet fails. Literally following a hallucination, Locke and Boone discover a small plane crashed high in a tree. Sawyer, suffering from severe headaches, is forced to turn to Jack for help. Written by Lynne Boris Johnston

Plot Summary | Add Synopsis

Plot Keywords:

hatch | tree | headache | plane | dialysis | See All (21) »


TV-14 | See all certifications »





English | Korean

Release Date:

30 March 2005 (USA) See more »

Filming Locations:

O'ahu, Hawaii, USA

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

1.78 : 1
See full technical specs »

Did You Know?


Swoosie Kurtz and Kevin Tighe, who play Locke's parents, are only 8 years older than Terry O'Quinn. See more »


Boone falls forward with the plane from a cliff. While standing in the front. Locke finds him back in the middle of the craft. See more »


Hurley: [to Sawyer, making fun of his glasses] Dude! Looks like someone steam-rolled Harry Potter!
See more »


End Title
Written by Michael Giacchino
Performed by The Hollywood Studio Symphony
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User Reviews

A Season 1 standout
9 January 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.

Have always considered "Deus Ex Machina" as one of my favourite episodes of the first season, which still stands, and is demonstrative of why Locke is one of my favourite, and one of the most interesting, 'Lost' characters. Even when 'Lost' declined, Locke and Terry O'Quinn's acting certainly did not and were among the main reasons why the show was stuck with. It may not be quite on the same level as "Walkabout" as far as Locke episodes go, but this is something that is an incredibly tough act to follow. There is an awful lot to like about "Deus Ex Machina" and it is not just Locke, though he does play a big part in why.

The acting of Terry O'Quinn can't be faulted. Neither can Ian Somerhalder, with Boone given some of his most interesting material yet, more so than "Hearts and Minds". They work so well together and their chemistry/rapport is one of the most well done of the first season. Kevin Tighe is terrifying, Anthony being everything that Ethan should have been in his final appearance in "Homecoming" four episodes before.

Sawyer's/Jack's subplot is written well and doesn't distract from the main plot. Josh Holloway does a great job here. Speaking of the main plot, the whole business with the hatch finally feels like it is properly going somewhere and the island events and mysteries being advanced. The drug plane dream sequence is indeed memorable.

Locke's flashbacks may not be the most original on 'Lost', can understand somewhat the criticism of it being derivative. It is however very interesting, well written and acted, actually adding to Locke's character rather than reiterating what we already know (like Charlie in "Homecoming") and does not distract from the main story.

Visually, "Deus Ex Machina" is slickly shot and makes the most of the beautiful but mysterious island. The direction is skilful in one of the season's better directed episodes, succeeding in getting the best out of the story's themes. Writing is smart and taut. The music is understated yet chilling.

Overall, outstanding and a season standout. 10/10 Bethany Cox

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