The silent conversation between Reid and Gideon in Ashes and Dust is one of my favorite things about this series. That was the first episode of Criminal Minds I ever saw, and it went right over my head. Then, when I saw the episode again recently, there was just so much more there!

There's all this undercurrent going on with the characters and writing, and yet, it doesn't alienate the first-time viewer. It's almost completely episodic, but if you do watch it all through, you are rewarded with those added layers of meaning.

It's got layers, like an onion!