This article is about the episode. For the device, see Arthur's Mantle.

"Arthur's Mantle" is the eighteenth episode of the ninth season of Stargate SG-1.


Lt. Colonel Cameron Mitchell and Lt. Colonel Samantha Carter are "out of phase", after activating Arthur's Mantle, and may be stuck that way forever. Soon, Dr. Daniel Jackson finds himself sharing their fate. Meanwhile, Teal'c and a team arrive on the Sodan home planet, and find that Volnek has been ravaged by a Prior, killing them all.

Previously on Stargate SG-1[]

Vala Mal Doran comes to Stargate Command with a tablet written by the Ancient Merlin. The tablet leads to a cave under Glastonbury Tor where SG-1 finds many artifacts. After a fight with the Sodan warrior Volnek, Lt. Colonel Cameron Mitchell is captured and trained by his brother Jolan. When Mitchell returns to Earth, he releases Volnek who promises they will meet again.


Lt. Colonel Samantha Carter has been trying for weeks to find a way to access an Ancient device found in Merlin's cave in "Avalon", so far without success. Just as Lt. Colonel Cameron Mitchell joins her to offer some breakfast, she manages to access the device, shifting them both into an alternate dimension. After their attempt to contact Dr. Daniel Jackson fails (they expected him to have the ability to see them, as he had experienced something very similar in a previous episode - "crystal Skull"), they wait for the base personnel to detect them. Meanwhile, the SGC learns that the Sodan homeworld has been attacked and, as Mitchell is missing, Teal'c takes SG-12 to find out what happened.

On the base, Daniel finds out, by comparing security camera footage, that the device must be responsible for his colleagues' disappearance. At first Dr. Bill Lee believes they have been miniaturized, but that theory is quickly abandoned. Daniel is reminded of the device that shifted him years ago when he hears that this device emits lepton radiation as well. He goes to study the manuscripts from Merlin's cave and discovers that Mitchell and Carter have been shifted much as he was. However, the device exists in both dimensions, so they begin to communicate by pressing buttons on the device.

Volnek 1

Undead Volnek of the Sodan.

Meanwhile, on the Sodan homeworld, Teal'c learns that Volnek (a Jaffa nearly mortally wounded by Mitchell in an earlier episode) had been rendered ill and then driven mad by a Prior. Volnek went on to kill all villagers except for the chief, Haikon, who is badly wounded. He survives when a member of Teal'c's squad administers Tretonin to compensate for the murder of his symbiote (Volnek struck at the typical Jaffa weak spot when engaging the villagers). Haikon reveals that Volnek is using a Sodan cloak, and Teal'c decides to use one himself in order to find Volnek. He is unable to kill Volnek, who simply rises to his feet despite being repeatedly struck down by either staff blasts or Tau'ri weaponry.

In the meantime, Major General Henry Landry sends SG-3 and SG-22 to support Teal'c's team when he does not report in; Mitchell, still invisible and intangible to the rest of the base, decides to tag along to help. Volnek, apparently retaining some measure of intelligence despite his madness, has disabled the Eye of the Gods to reach the Stargate from their lofty mountain village and has trapped Teal'c and SG-12 with him. Mitchell discovers that while Teal'c and Volnek are cloaked, Mitchell is visible and audible, yet intangible to them both. Mitchell and Teal'c cooperate to lure Volnek into an explosive trap, using A-M18A1 Claymore mines that will hopefully completely obliterate his body.

Arthur's Mantle 3

Instructions in Ancient for Arthur's Mantle.

On Earth at the same time, Daniel has been shifted to the same dimension by a mistake of Dr. Lee. They learn from the device's logs that Merlin used the device to hide his latest invention from his fellow Ascended Beings. Carter is shocked to learn that he willingly gave up Ascension, until she learns what he was hiding from the Others - a weapon capable of killing ascended beings. Daniel explains that Merlin perceived the threat posed by the Ori to the people of the Milky Way and anticipated the inaction of the Ancients. As far as Daniel can determine, Merlin completed the weapon. Carter and Daniel learn that the weapon is on another planet, and the log contains the Stargate address.

Back in the regular dimension, Dr. Lee is further tinkering with the device and accidentally drains nearly all of its power. Daniel succeeds in restoring himself and Carter, just as they learn the coordinates where Merlin stored his prototype. Unfortunately, Mitchell, who is on the Sodan homeworld, suddenly becomes tangible. Mitchell loses sight of Volnek, just before Volnek starts throwing him around. Teal'c saves Mitchell, just in time, then gets Volnek to chase them both through the trap, which finally ends Volnek utterly. Thankfully, Mitchell managed to swipe the vital control crystal from Volnek's pocket before the mines detonated, so that the transport device could be repaired.


Appearances for Arthur's Mantle




Sentient Species




Notable quotes[]

Mitchell: Out of phase? What does that mean?
Carter: It means we may have shifted to an alternate dimension.
Mitchell: And there are an infinite number of alternate dimensions.
Carter: No no no. That's alternate realities.
Mitchell: So when the other SG-1's showed up?
Carter: Completely different problem.

Mitchell: Roast Beef.  The one time I can't eat, they serve roast beef, (shouting at the chef) do YOU know how many times I've requested roast beef!?  This is torture.
Carter: It's only been a few hours.
Mitchell: You're not the least bit concerned about this? No one can see us or hear us, we can't touch anything, ergo no eating, no drinking, and I'm not gonna speculate on the other bodily functions... if they don't figure a way to get us back...
Carter: They'll figure it out.

Mitchell: Jackson, just the guy to help us with a little problem...
(Daniel passes through Mitchell)
Mitchell: ...or not.
Carter: The dimension we're occupying must be different from the one he was shifted to.
Mitchell: Alternate, alternate dimension?
Carter: Something like that, yeah.

Jackson: Sam.
Carter: Daniel!
Jackson: (excited) Bill, I will never doubt you again!
(Lee turns his face, smile on his face disappears)
Lee: Oh boy...
(Daniel frowns)
Lee: Doctor, Dr. Jackson, ca... can you hear me?
(Lee passes through Daniel)
Lee: If you can, press this button for yes.
(Carter pushes the button for Daniel)

Teal'c: And you are certain you will not be injured?
Mitchell: Absolutely. Hey, take your best shot if you don't— (Teal'c takes a swing at him)
Teal'c: Good luck, Colonel Mitchell.
Mitchell: Hey, did you even think twice about that?
Teal'c: I did not.
Mitchell: Huh.

Lee: Okay, I'm gonna try and make an adjustment to the algorithm, it is a bit of a long shot, but...
Landry: You better be sure about this doctor, because if you make ME disappear, there won't be a DIMENSION safe enough for you.


Main Characters

Guest Stars


  • The symbols (at least those shown in close-up) on the keys of Arthur's Mantle do not appear to be simple letters in the Ancient language. The key used by the shifted team members for "yes" is used by Dr. Daniel Jackson as an "enter" key, indicating its role as a confirmation key; given Daniel's familiarity with the language and his reluctance to "push[...] random buttons", he likely selected the "yes" and "no" buttons for their meanings.
  • In M Theory, there are 9 spatial dimensions, not eleven as stated by Lt. Colonel Samantha Carter. The tenth and eleventh dimensions mentioned in M theory are time and an extra spatial dimension, added to theory to create an overview.
  • The Sodan, who were first seen in "Babylon", are nearly eradicated in this episode, except for Lord Haikon, who is the only survivor of the society.
  • The SGC learns about a weapon capable of destroying ascended beings, which might be used against the Ori or the Ancients.


  • When Teal'c first shoots Volnek and he goes over flat on his back, he can be clearly seen to be wearing what appear to be standard Tau'ri hiking boots with deep-tread hard rubber soles.
  • When Mitchell is running through the forest shouting for Volnek his watch is on his right wrist, but in the next scene, it's back on his left wrist.
  • In the opening scene when Carter first triggers the device, Mitchell walks back into the room rubbing his hands together, but when Jackson reviews the video of them disappearing Mitchell's hands are down by his sides.
  • When Teal’c arrive at the Sodan village, the first body that he inspects is still breathing.

Other languages[]

  • French: Le Manteau d’Arthur (Arthur's Mantle)
  • Italian: Il Segreto Di Merlino (Merlin's Secret)
  • Spanish: El Manto De Arturo (Arthur's Mantle)
  • Czech: Plášť krále Artuše (King Arthur's Mantle)
  • Hungarian: Arthur leple (Arthur's Mantle)
  • German (DVD/TV): Arthurs Umhang (Arthur's Mantle) / Neue Dimensionen (New Dimensions)

Links and navigation[]

Smallwikipedialogo This page uses content from Wikipedia. The original article was at Arthur's Mantle. The list of authors can be seen in the page history. As with SGCommand, the text of Wikipedia is available under the GNU Free Documentation License.
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