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Observer Effect

"Observer Effect"
Star Trek: Enterprise episode
Episode no. Season 4
Episode 11
Directed by Mike Vejar
Written by
Production code 411
Original air date January 21, 2005 (2005-01-21)
Guest appearance(s)
-- None --
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List of Star Trek: Enterprise episodes

"Observer Effect" is the eleventh episode of the fourth season of the American science fiction television series Star Trek: Enterprise and the eighty-eighth overall. It was first aired on January 21, 2005, on UPN. It was written by Judith and Garfield Reeves-Stevens, and directed by Mike Vejar. Set in the 22nd century, the series follows the adventures of the first Starfleet starship, Enterprise, registration NX-01. This episode sees alien entities test the Enterprise crew by observing their reactions to a deadly silicon-based infection. Actual first contact with these aliens – the Organians – would occur about a century later, during the events of the Star Trek: The Original Series episode "Errand of Mercy".

As it was a bottle episode, the episode did not use any additional sets or guest stars with the intention of cutting down on costs for the series. This also gave time for the visual effects team to finish earlier work. The episode received mixed reactions from critics, with praise directed at the links to The Original Series, while criticism directed towards some of the characterization of the characters. "Observer Effect" was watched by 2.76 million viewers on first broadcast, which formed part of an overall drop of viewers for the series.

Lieutenant Reed (Dominic Keating) and Ensign Mayweather (Anthony Montgomery) play chess while serving as hosts to non-corporeal aliens. Returning from an away mission on the planet below, Commander Tucker (Connor Trinneer) and Ensign Sato (Linda Park) soon exhibit symptoms of a strange disease. Upon examination by Doctor Phlox (John Billingsley), it is found to be a highly contagious silicon-based virus, and Captain Archer (Scott Bakula) explains that Commander T'Pol (Jolene Blalock) and Phlox are seeking a cure. To pass the time, while isolated in Decontamination, the two try to learn more about each other.


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