The 206th episode of Stargate SG-1 airs on the Sci-Fi Channel, starring Ben Browder, Amanda Tapping, Christopher Judge, Claudia Black, Beau Bridges, and Michael Shanks. 
During an experiment to improve the phasing device, Carter finds herself transported to an alternate universe. That universe’s Carter – still a major – had also been engaging in a dimension-tapping experiment – but the experiment malfunctioned, killing that Carter and transferring Col. Carter in her place. In this universe, Anubis’s assault against Earth required America to reveal the Stargate program to the public. The resulting riots and diplomatic led President Hank Landry to declare martial law, which has continued in the face of the Ori threat. Gen. Hammond still leads Stargate Command, while Major Lorne leads SG-1. Teal’c has returned to the Jaffa, from whom Earth is now isolated. Mitchell, once paraded as a hero, was cut loose when he began to question Landry’s security measures and restrictions on civil liberties; he now lives in a squalid apartment, paralyzed. Col. Carter saves this Earth from an Ori invasion by taking the entire planet out of phase. But Landry is reluctant to let her leave – Carter is a media hero and a rallying point for his presidency. The only help she can turn to is Major Carter’s ex-husband: dot-com billionaire Rodney McKay.
written by Alan McCullough
directed by Andy Makita
music by Joel GoldsmithCast: Ben Browder (Lt. Col. Cameron Mitchell), Amanda Tapping (Lt. Col. Samantha Carter), Christopher Judge (Teal’c), Claudia Black (Vala Mal Doran), Beau Bridges (Gen. Hank Landry), Michael Shanks (Dr. Daniel Jackson), Don S. Davis (Gen. Hammond), David Hewlett (Rodney McKay)
LogBook entry by Dave Thomer