what are some good episodes of ncis?

i want to find good ncis episodes. my favorite character is abby so if she's in it thats even better.

IMHO they are all great!

This episode where this boy held his class hostage but it was really someone else controlling him and Tony thought to use the camera trick like in the movie Speed to rescue everyone. I enjoyed that one and the most recent ones Cloak and Dagger. The one where Ziva and Tony were stuck in a truck"Boxed In". and when they had to pretend to be married. too funny.The Halloween episode from last year called"Chimera"when they were all on a ship in the middle of the ocean and the crew was missing. Very creepy. Had me on the edge of my seat! Hope this helped.