History StargateSG1 / AToF

* CaliforniaDoubling: Canadian variant.

* ExpendableAlternateUniverse: Whenever a member of the team stumbles into an alternate timeline or universe, it's almost always worse off than the main one and a good excuse for an episode.

* [[CoolGuns/SubmachineGuns Cool Gun]]: The SG-1's standard field weapon, the FN-P90, a submachine gun personal defence weapon that easily outclasses the Goa'uld's flashy staff weapons as a weapon of war.

* ExpendableAlternateUniverse: Whenever a member of the team stumbles into an alternate timeline or universe, it's almost always worse off than the main one and a good excuse for a KillEmAll episode.

%%* TheDollEpisode

* AbusivePrecursors: The Goa'uld served as the foundation for many, if not all, human societies and religions prior to approximately 3000 BCE, but are a homicidal, imperialist and sadistic group that booby trap their leftover technology and return to exterminate any society descended from theirs that could rival them. Also, the Ori are a race of very powerful [[EnergyBeings Energy Beings]] who force humans (their own descendants) to fanatically worship them in order to gain more power.

* BigBadEnsemble: This series almost always had one single BigBad whom SG-1 had to contend with. In the later part of Season 8, however, they were simultaneously faced with two {{Galactic Conqueror}}s: the Goa'uld System Lord Anubis, an immortal EnergyBeing who is leading the combined Goa'uld forces behind the scenes with Ba'al as a puppet, and Replicator Carter, the humanoid leader of the Replicators, a HordeOfAlienLocusts. The Replicators proceed to invade the Milky Way to consume everything as [[EvilVersusEvil the two evil factions duke it out among each other]], while SG-1 and the Free Jaffa try to take Dakara to free the Goa'uld-dominated worlds. Anubis wants to use a weapon on the planet to wipe out all life, while [=RepliCarter=] tries to find a way to destroy Anubis and rule herself.

** Anubis was supposedly way too evil ''even for the Goa'uld''. The Goa'uld System Lords enslaved the galaxy and were extreme egomaniacs. His ultimate goal was to ''[[OmnicidalManiac erase all life in the entire galaxy]]'' (including the total extinction of his own race) and then [[InTheirOwnImage recreate it according to his own preferences]]. He was smart enough to trick Oma into letting him ascend, making him an immortal EnergyBeing far beyond any regular Goa'uld. Furthermore, he made a lot of Goa'uld (including System Lords) work for him, and crushed the rest of them, including most of Yu's fleet.

* BunnyEarsLawyer: Pretty much every major military role in the series is this to some extent. Jack O'Neill turns it UpToEleven, by making insubordination into an art form. WordOfGod (from real [=USAF=] generals that Richard Dean Anderson has asked about it) is that there are real colonels who are much worse than Jack.

* AbsoluteCleavage: Ba'al's emissary to the remaining System Lords during the ColdOpening of "Reckoning, Part 1".

* {{Corpsing}}: At the end of "Tin Man", when Clone-SG-1 and SG-1 are saying their goodbyes, keep an eye on Teal'c as Jack comments on Clone-Jack's need to have his face examined and you will see Christopher Judge grinning like an idiot, desperately trying to avoid laughing out loud.

** The events of "Camelot" reveal that the time of Myth/KingArthur's prophesied return is approaching and that Valencia is destined to help him after she pulls the sword from the stone. SG-1 does spend several episodes following Arthur's trail to several planets, and eventually discovers Merlin's anti-Ori weapon, but the prophecy of Arthur's return is never followed up or explored.

* CantArgueWithElves: The Nox are a race of technologically advanced beings possibly on par with the Ancients, yet are still perfectly in tune with nature, and are complete pacifists. But the only reason they can get away with this pacifism is because they are so advanced, yet speak with condescension and superiority to less advanced cultures like Earth who do not have the technological superiority that allows the Nox to not be wiped out. And they won't share a single part of that technology. Really, they make the ''Ancients'' seem humble at times.

* BewaretheNiceOnes:

* BewareTheNiceOnes:

** The Asgard, particularly Thor. They are a wonderfully benevolent and understanding people, even treating the Goa'uld with a measure of respect... but if you try to invade a world they protect, Thor will descend from on high in his ship and ''seriously fuck you up''. And without any mess, too.
*** While simultaneously ''cleaning up your mess,'' in point of fact. He wiped out an entire Goa'uld occupation force using just his ship's transporters. Heaven help you if he decides to actually ''shoot'' at you.

** Jack frequently demonstrates this towards the Tok'ra. It's less to do with the fact they have "snakes in their heads", but because the Tok'ra will often treat the host as expendable, but go out of their way to save a symbiote. Add to that, the Tok'ra screwing them over on more than one occasion by seizing technology that SG-1 busted their humps trying to get. Fair to say, Jack's developed some annoyance with their priorities.

* TheEnemyWeaponsAreBetter: The Zat'nik'tel, or "[[StunGuns Zat Gun]]" as the SGC eventually dubs them. While the Goa'uld staff weapons aren't up to snuff as a main weapon compared to a P90 or other long-barrel rifles in the SGC's arsenal (see AwesomeButImpractical), the Zat Gun offers a higher-endurance sidearm weapon (since it's a [[{{Unobtanium}} Naquadah]]-powered energy weapon instead of a magazine-fed ballistic weapon) that provides a nonlethal option. As the SGC gathers more and more through spoils, they start getting regularly used in SGC operations, even being used as preferred standard sidearms by many SG team members over the 9mm service pistols.

* BallOfLightTransformation: People who AscendToAHigherPlaneOfExistence take the form not of a ball of light, but of a luminous blob with waving tendrils, sometimes dubbed a [[FanNickname "light jellyfish"]]. Ascended Ancients can then take this form at will, but they're pretty much EnergyBeings all the time by this point -- though they can also resume a material form if they wish.

%%* ClarkesThirdLaw

* ClipShow: Done multiple times. Usually the clip shows advanced the plot of the series, sometimes [[NothingIsTheSameAnymore radically]], usually by framing the clips as the Stargate Program being introduced and explained to people who had previously not known its details. This format was used to reveal the Stargate program to the United Nations Security Council in Season 6 and a new incoming United States President in Season 7. And, like everything else on the show, it was utterly parodied in "200".

* BaldOfAwesome:
** Teal'c before season eight, much to the dismay of Christopher Judge, who regularly shaved his head.
** General Hammond remained bald throughout the shows run and was even described as such by Colonel O'Neill on several occasions. Bra'tac [[http://i.imgur.com/QU2mLn7.gif had a habit of pantomiming Hammond's baldness when referring to him.]]

* BossInMookClothing: Anubis's Kull warriors. Their armor is [[NighInvulnerability impervious to everything from machine guns to staff weapons to claymores]] and [[BeamSpam equipped with dual wrist-mounted rapid-fire staff weapons]]. Killing them requires a specialized energy weapon that negates the advanced technology that granted them life in the first place (or the kinetic energy of something on the order of a heavy artillery shell, which isn't exactly man-portable).

** Goa'uld hosts! The Goa'uld take humans as hosts, against their will, which makes every host an innocent victim! Nevertheless SG1 and other who opposes the Goa'uld, like the Jaffa-rebels, don't give too much thought (if any) about that and kill the Goa'uld together with their hosts. While it could be argued that this happens out of pragmatism, that they can't save everyone and a statement of Jacob Carter/Selmak that Goa'uld hosts of Systemlords are hundreds or thousands of years old and kept only kept alive through the symbiont and the sarcophagus, it was shown that SG1 went out of a limb and risked even humankindsaving operations to rescue hosts when thy knew them before their occupation by a symbiont, like Sha're, Ska'ara or Sarah Gardner!

* DoubleStandard: The way the members of the SGC treat other life-forms tends to be this. They will be compassionate and understanding with all humans and any creature that is bipedal (or not too far from human), and yet treat any form of artificial intelligence or any biological creature that is too alien as either a threat or "not really alive." In the case of artificial intelligence, they attribute their actions to their programming, not their psychological make-up and free-will, even with artificial life-forms who are as complex and sentient as human beings. To the credit of the SGC, they do start to ''try'' to improve in this department as the series goes on.

** "[[Recap/StargateSG1S1E21WithinTheSerpentsGrasp Within the Serpent's Grasp]]": Stargate Command is being shut down for political reasons, but Daniel believes based on an encounter with an AlternateTimeline [[Recap/StargateSG1S1E19ThereButForTheGraceOfGod two episodes ago]] that the Goa'uld are preparing to attack Earth from space. SG-1 steals weapons from the armory and dials Daniel's coordinates against orders, and are able to foil the attack in "[[Recap/StargateSG1S2E1TheSerpentsLair The Serpent's Lair]]", making it pretty much impossible that

* DisobeyedOrdersNotPunished: ** "[[Recap/StargateSG1S1E1ChildrenOfTheGods Children of the Gods]]": DoubleSubverted. After the original ''Film/{{Stargate}}'' movie, Jack O'Neill lied on his mission report, claiming that everyone on Abydos died when he detonated a nuclear warhead behind him to kill Ra, according to his mission orders. When General Hammond prepares to send a second, more powerful bomb through the gate, Jack confesses it was only half-true: he did blow up Ra, but Ra's ship was in orbit at the time. General Hammond throws Jack in the brig pending CourtMartial, planning to send the bomb through anyway, but [[HeelRealization then has second thoughts about nuking potentially innocent people]] and orders Jack to lead a recon team through the gate to figure out what's going on.

(''Jacob gives O'Neill a look and walks off'')\\
'''O'Neill:''' (''after a pause, hurrying after Jacob'') I'm sorry. You said we have a problem, not a big galactic emergency.

** The Ori replaced the Goa'uld as the ever-present BigBad in Seasons 9, 10, and the first SG-1 movie, ''Film/TheArkOfTruth''. They were represented by their DarkMessiah, Adria.

** Subverted when the [[AbusivePrecursors Ori]] are all killed partway through Season 10, but their followers are unaware and continue the war in the Ori's name, and must be dealt with separately. It is mentioned that the "Flames of Celestis" (the Doci's connection to the Ori) went out when the Ori died and this has the Priors concerned, but they've elected not to share this with the masses. ''Film/TheArkOfTruth'' reveals that, with the deaths of all the Ori, the ascended Adria is now in charge of all their followers. Additionally, the trope is later inverted in that it's ''Adria'' that can't be defeated until she loses all her followers.

* ContinuityOverlap: Seasons 8-10 run parallel with Seasons 1-3 of its spinoff ''Stargate Atlantis'' (while the commercial release of the movies ''The Ark of Truth'' and ''Continuum'' overlapped with Seasons 4-5). Despite the Atlantis Expediton being in a neighboring galaxt, events over in Pegasus are acknowledged by, and even affect, ''SG-1'' (and vice-versa).