ETA: unlocked because though this is part of something larger, if you recognize what, your memory for random detail is much better than mine. ETA2: now it's tagged and the mystery is largely gone.
This lab is a week late. I need to finish it. Not write directionless SGA/Highlander snippets. Also, since Adam Pierson is probably forty-something now and Methos is obviously not, I coughed up a new alias.