“The Road Not Taken” is episode thirteen of season ten of Stargate SG-1.
Sam is once again tinkering with Merlin’s device that was found in “Arthur’s Mantle”. Whilst experimenting on it, she disappears and reappears in a parallel universe. Again.
That universe’s Sam had also been conducting an experiment which seems to have gone violently wrong. Earth is under threat from the Ori, and they’ve run out of power for the chair from the Ancient outpost in Antarctica.
The solution to the Ori problem is solved quite quickly, leaving Sam in a world which has become rather oppressive following the Ori threat.
Familiar faces in different places in this episode – Hammond is back running the SGC, Major Loren is commanding SG-1 and Landry is the President of the United States. I thought it was going to be Jack O’Neill for a bit – that would have been a bit different
Some not-so-subtle hints about the dangers of shelving people’s rights to deal with a threat (a dig at the actual US government I think) and how there is always a new threat, meaning that there is always a reason to keep the oppressive laws. It always seems to be easier to infringe on rights than to return them.