There! Are! Four! Lights!
This is a bit of a cheat, but my favorite episode in season 6 has got to be Chain of Command (Part 1 and Part 2, though I think Part 2 might edge it out if I had to pick one. Good thing I am making the rules for this series!).
Picard and Dr. Crusher (for some reason) are sent off on a secret mission. Whilst Picard is away a new captain appears on the ship and shakes things up (and makes Troi put on a regular uniform to boot).
The mission goes poorly and bad things happen to Picard. Plus there are Cardassians (which might be the best new enemy race TNG created).
Other good episodes include:
- Relics - Scotty and a Dyson Sphere? I'm in.
- Timescape - Romulans!
- Tapestry - Another interesting Picard episode, and a very good Q one too.
Find the rest of the posts in this series here.