The team discovers an early industrial world with suffering from collective amnesia and has no elderly people.



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Episode cast overview:
Maria Luisa Cianni ...
Woman (as Luisa Cianni)


On the planet Vyus, SG-1 discover an entire early industrial society suffering from collective amnesia since an unspecified event about a year ago known as the Vorlix. The most lucid local, scientist Ke'ra, develops an almost amorous relationship with Daniel while she shows the team the fascinating diary of a deceased scientist, which also mention a pesticide Dargol which had to be banned because it affected fertility and a 'visitor' named- Linea, who fits the description of the Destroyer of world SG-1 inadvertently helped escape (in "Prisoners") with them from a penal planet. Ke'ra and a Vyus couple, Orner and Layale, come to star-base where Dr. Frazer proves Ke'ra has Linea's DNA, and the amnesia is caused by a physical block in the brains caused by Dargol, which Linea developed into an experimental fountain of youth, which apparently suddenly went wrong. Manufacturing a medicine within a reasonable time, before ignorance ruins the planet, is hopeless without Ke'ra/Linea, but ... Written by KGF Vissers

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Plot Keywords:

prison | love | kissing | jail | See All (4) »






Release Date:

15 October 1999 (USA)  »

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Aspect Ratio:

16 : 9
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Did You Know?


The room kera is in is the same room daniel and Jack were playing chess in legacy See more »


Nodal and his wife return to Vyus fully cured, but no mention is made of the fact that their entire world has yet to receive the cure. See more »


Major Samantha Carter: You realise, of course, the implication?
Jack O'Neill: [Nods] No.
See more »


End Title
Written by Joel Goldsmith
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User Reviews

The Return of the Destroyer of Worlds
22 January 2016 | by (Rio de Janeiro, Brazil) – See all my reviews

The SG-1 visits the planet Vyus and discovers that there are neither children nor elders in the society that has collective amnesia after the mysterious Volix. Jack, Sam, Daniel and Teal'c are introduced to Ke'ra, who is the local leader and scientist that has an immediate crush on Daniel. She explains that the Volix was the result of a research with the pesticide Dargol carried out by a scientist called Linea that was visiting their planet. She also gives Linea's diary to the team and they realize that she is the Destroyer of Worlds (see S02E03 – "Prisoners"). The SG-1 feels responsible for the situation in Vyus and Jack summons Dr. Janet Fraiser to help the inhabitants. She explains that the progress would be faster at the SGC and Ke'ra, Orner and Layale volunteer to go as guinea pigs. Soon Dr. Fraiser finds that Ke'ra has Linea's DNA and the Volix was caused by her research of the fountain of youth using Dargol and the amnesia is a side effect to the experiment. The problem is that Fraiser and Sam conclude that they need the knowledge of Ke'ra do help them; but can they trust in Ke'ra?

"Past and Present" is an interesting episode of "Stargate SG-1" with the return of Linea, The Destroyer of Worlds, who lured the SG-1 to escape from the prison in an isolated planet. Daniel creates a dilemma with the comparison of Linea-Ke'ra with Teal'c and believes in a second chance in life for a former criminal. However it is a totally different situation since Teal'c changed his behavior by himself. What if Ke'ra recalls who she was? In addition, since the society is not fertile, the Vyus population is doomed to end. My vote is seven.

Title (Brazil): "Past and Present"

3 of 3 people found this review helpful.  Was this review helpful to you?

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