This was a great episode, I think these shows compliment each other quite a bit, the only problem I had with it was that they didn't have Steve on there as well ( I know that the actor had to take time off). They really need some scenes with Danny and Steve and Callen and Sam. Both pairs have very similar dynamics and it would be really great to see the interaction between the four of them.
Other than that great episode, the villian was really realistic, ( Which is pretty disturbing) and the case was fast paced and exciting. I also loved the scenes with Danny and Hetty, that was just too funny.