Stargate SG-1 (often abbreviated as SG-1) is a science fiction
television series, part of the Stargate franchise. It begins one year
after the events of the 1994 science fiction film Stargate. It was
produced in and around Vancouver, Canada.
In the Stargate science fiction universe, a network of ancient
alien devices called Stargates connect the far reaches of the Milky Way
galaxy, opening the door for near-instantaneous interstellar travel.
Stargate SG-1 chronicles the exploits of SG-1, the "flagship team" of
at least 25 teams who explore the galaxy and defend Earth against alien
threats such as the Goa'uld, Replicators and later the Ori.
The series is currently broadcast in several countries around
the world; in some places, such as Europe, North America, Japan, Latin
America and Australia, the series is broadcast in HD. In 2007, after
completion of the series run, Stargate SG-1 was named as number 28 on
TV Guide's list of "The 30 Top Cult Shows Ever".
Stargate SG-1 follows and expands upon the Egyptian mythologies
presented in Stargate. In the Stargate universe, the human race on
Earth, known to the rest of the galaxy as the Tau'ri, were descendants
of the Ancients, a race of highly evolved beings. Earth
was believed to be the first planet where humans existed in this
galaxy. Humans were enslaved and transported to other habitable planets
by the Goa'uld such as Ra and Apophis.
For millennia, the Goa'uld harvested humanity, heavily influencing and
spreading human cultures. As a result, Earth cultures such as those of
the Aztecs, Mayans, Britons, the Norse, Mongols, Greeks and Romans are
found throughout the known habitable planets of the galaxy. Many
well-known mythical locations such as Avalon, Camelot and Atlantis are
found, or have at one time existed.
The series explores both long story arcs (discussed below) as
well
as more contained one-episode stories. Often these shorter stories will
detail SG-1's exploits on a previously unexplored planet.
Presently, the Earth Stargate (found at a dig site near Giza
in 1928) is housed in a top-secret U.S. military base known as the SGC
(Stargate Command) underneath Cheyenne Mountain. Col. Jack O'Neill, Dr.
Daniel Jackson, Cpt. Samantha Carter and Teal'c
compose the original SG-1 team. Along with 24 other SG teams, they
venture to distant planets exploring the galaxy and searching for
defenses from the Goa'uld,
in the forms of technology and alliances with friendly advanced races.
Later in the series, some members of SG-1 leave and new members join,
such as Jonas Quinn, Lt. Col. Cameron Mitchell and Vala Mal Doran
mythology surrounding the Ori, their followers, and their enemies
— the The parasitic Goa'uld use advanced technology to cast
themselves as gods and are bent on galactic conquest and eternal
worship. Throughout the first eight seasons, the Goa'uld
are the primary antagonists. They are a race of highly intelligent,
ruthless snake-like alien parasites capable of invading and controlling
the bodies of other species, including humans. The original arch-enemy
from this race is the System Lord Apophis. Other System Lords, such as
Ba'al and Anubis, play pivotal roles in the later seasons. In the third
season, the Replicators are also introduced. The Replicators are
mechanical bugs that feed on metals to "replicate" and create more
bugs. Enemy of the Asgard, they are the main reason why the Asgard
cannot eliminate the Goa'uld threat. In the ninth season a new villain
emerges, the Ori.
The Ori are advanced beings with unfathomable technology from another
galaxy, also bent on galactic conquest and eternal worship. The
introduction of the Ori accompanies a departure from the primary focus
on Egyptian mythology into an exploration of the ArthurianAncients.
Both Ancients and Ori are Ascended Beings, meaning that they have
'ascended' to a higher plane of existence, giving them extraordinary
power.
[Source : Wikipedia]