"The Most Toys" ***
Data is presumed killed when he is abducted by an unscrupulous collector.
Meh. The ending is decent, but I found it a slow build to get there. The villain has some charm, but not enough to really interest me.
Those shuttlepods really are stupid looking.
"Sarek" *****
Violence breaks out among the crew while Ambassador Sarek prepares to conduct his final mission.
How wonderful to see Sarek again. And like McCoy's cameo way back in "Encounter At Farpoint" it's a fitting tribute to a great character. I felt sad watching Sarek's deterioration, the disheartening loss of control for such a dignified character. And Patrick Stewart's performance was awesome and moving.
This was a wonderful rebound after some disappointing episodes.
Here's a mistake you're making, I think: Star Trek: The Next Generation is not primarily an adventure show.
The opening narration suggests otherwise. And for the first two plus seasons it was that. The fact that it drifted away from being a space adventure is also part of the reason I drifted away from the series.