Barclay protomorphosis syndrome

Star Trek: The Next Generation episode
Episode no. Season 7
Episode 19
Directed by Gates McFadden
Written by Brannon Braga
Featured music Dennis McCarthy
Production code 271
Original air date March 19, 1994 (1994-03-19)
Guest actors
Episode chronology
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List of Star Trek: The Next Generation episodes

"Genesis" is the 171st episode of the science fiction television series Star Trek: The Next Generation. The 19th episode of the seventh season.

Captain Jean-Luc Picard and Data return to the USS Enterprise to discover the rest of the crew de-evolved into more primitive forms of life, including spiders, amphibians and cave men.[1]


The given stardate is 47653.2,[1] the year 2370.[2] Worf fires a torpedo that veers off course during weapons exercises, and Picard and Data leave in a shuttlecraft in order to retrieve it from space.[3] Data leaves his pregnant cat, Spot, with Barclay. Barclay, a hypochondriac, visits Crusher, who gives him a synthetic T-cell to activate one of his dormant genes. However it has the undesired side-effect of activating all his dormant introns. The crew begin to experience strange symptoms.[2] Worf becomes aggressive and feels hot, while Deanna Troi feels cold. Crusher examines a silent Worf in sick bay and notices a venom sac on his neck, whereupon Worf sprays venom at Crusher, injuring her severely. As a result of her injuries, Crusher is placed into stasis. Nurse Ogawa warns the senior staff that everyone on the ship is in danger. [4]

Several days later, when they have retrieved the torpedo from space, Picard and Data return to find the ship adrift, with the main power off-line. One of the bridge officers is dead, torn open in his seat,[5] and most of the crew are de-evolving. Worf has reverted into an aggressive predator attempting to mate with Troi; Riker a caveman; Troi an amphibian; and Barclay a spider.[4] Picard is overcome by irrational emotions of fear and anxiety, indicating that he has been infected, and Data suggests he might soon de-evolve into a primate similar to a lemur or marmoset. Picard and Data return to Data's quarters and find Spot and her kittens. Spot herself has changed into an iguana, however the kittens are normal.[6] Data recommends that they locate Nurse Alyssa Ogawa who is recently pregnant, on the theory that the amniotic fluid of a pregnant woman surrounding her baby hedges out the infection, like it did with the kittens. While in sickbay, Worf attempts to break through the doors searching for Troi. Data concocts a pheromone spray from one of Troi's sebaceous glands, and Picard uses it to distract Worf and lead him off through the ship, so Data can work on the cure. Worf eventually catches Picard in a Jefferies tube and the Captain uses a power cable to incapacitate him. Meanwhile, Data finishes the construction of the modified retro-virus and releases it into the air which returns everyone to their original state. At the conclusion, Crusher names the condition 'Barclay's Protomorphosis Syndrome', after its first sufferer.[4][2]


Genesis employs heavy make-up use, and 1994 saw 10 Emmy nominations for The Next Generation for Outstanding Individual Achievement in Makeup for a Series. This includes one for Michael Westmore,[7] who served as the make-up supervisor for Genesis.[8]


  • Star Trek The Next Generation DVD set, volume 7, disc 5, selection 3.

External links

  • Internet Movie Database
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