s7e19 “Strange Bedfellows”
Worf has a real knack for this sort of thing.
If the last door is Weyoun 7 (pictured above), then 5 (background) had a mysterious “transport accident” (at the hands of Damar) and 6 (middle ground) was the traitor who died helping Odo.
Maybe because of the ultra depressing ending that’s just as relevant now as it was back then.
wait, that was the ending? I could’ve sworn it went on for another season that nobody watched.
Far more relevant now, unfortunately.