SG-12 was created in 1998 along with SG-10 and SG-11. (SG1: "In the Line of Duty")

Their first mission was to help relocate the Nasyans. (SG1: "In the Line of Duty")


SG-12 returning from Alaris.

The team later returned from Alaris three days early as a result of one of the team members being injured. (SG1: "Window of Opportunity")

The teams SG-3, SG-12 and SG-15 were called in by Major General George S. Hammond when SG-1 was negotiating with what seemed to be a hostile human race, called the Aschen. One year later, in August 2002, they were totally wiped out at the Tok'ra base when it was destroyed by Anubis's fleet, according to Major Ben Pierce of SG-15. (SG1: "2001", "Allegiance")

The team was apparently reconstructed at a later date. In 2003, they accompanied Major Samantha Carter and Teal'c to planet P2A-347 when assessing what could be done to restore Dr. Daniel Jackson's health. (SG1: "Lifeboat") They were also sent as back-up with SG-10 for SG-3 when SG-1 went missing. (SG1: "Zero Hour")

SG-12 was temporarily led by Lt. Colonel Cameron Mitchell in 2005 when investigating a religious man connected to the Ori on the planet P3X-421. (SG1: "Origin")

SG-12 accompanied Teal'c after a distress call was made by the Sodan (SG:1 "Arthur's Mantle")

Community content is available under CC-BY-SA unless otherwise noted.