Stargate: Atlantis (2004–2009)

The Brotherhood 

The team is on Dagan, where they must find key stones to retrieve a ZPM. Zelenka finds out Atlantis has a deep space scanner.


Martin Wood


Brad Wright (created by), Robert C. Cooper (created by) | 1 more credit »

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Episode cast overview, first billed only:
Joe Flanigan ... Major John Sheppard
Torri Higginson ... Dr. Elizabeth Weir
Rachel Luttrell ... Teyla Emmagan
Rainbow Francks ... Lt. Aiden Ford (as Rainbow Sun Francks)
David Hewlett ... Dr. Rodney McKay
Robert Davi ... Commander Acastus Kolya
Jana Mitsoula ... Allina
Paul McGillion ... Dr. Carson Beckett
Adrian Hough ... Pranos
Laura Mennell ... Sanir
David Nykl ... Dr. Radek Zelenka
Dean Marshall ... Sgt. Bates
Chuck Campbell ... Chuck the Technician
Graham Andrews Graham Andrews ... Porta (as Grahame Andrews)
John Tierney ... Astrum


The team has arrived on Dagan, one of the gate addresses with ZPM's the old Weir gave them. The people from Dagan know about this device they call Potentia. Apparently the Ancients gave a secret Brotherhood the order to keep it safe from the Wraith until it was reclaimed by their descendants. The location of the device is unknown however, since the Brotherhood was wiped out entirely in a culling. Archaelogists have tried for centuries to solve the puzzle and three out of nine key stones have been found recently The team tries to find the rest. Some Genii however, have taken interest in their activities on Dagan and of the archaeologists helping them is starting to have doubts. Meanwhile a console on Atlantis starts behaving strangely. Dr. Zelenka finds out a deep space scanner has activated itself. He makes a disturbing discovery. Written by Arnoud Tiele (

Plot Summary | Plot Synopsis

Plot Keywords:

cult | love | death | violence | blood | See All (39) »


TV-PG | See all certifications »



USA | Canada



Release Date:

25 February 2005 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:

Dolby Digital (Dolby 5.1)| DTS (5.1 surround)



Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


Dr. Beckett says "I'm a doctor not a bloody fighter pilot" alluding to a common saying by Dr. McCoy on Star Trek (1966). See more »


In the context of the way they were previously characterized, it makes no sense for the Genii to even try and take out the sentry with a tranquilizer dart. They have shown no concern with sparing the lives of any opponents before. It's just done because it's one of the main characters this time (Ford) that the writers were unwilling to write out of the series. See more »


Maj. John Sheppard: [the team are being forced to try to solve a puzzle one after another and an incorrect answer kills the one solving it] Two heads think better than one.
Dr. Rodney McKay: That's a common misconception.
Maj. John Sheppard: Give me a gun and I'll shoot him myself.
See more »


References Star Trek (1966) See more »


Main Title
Composed by Joel Goldsmith
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