This episode belongs to the psychs, Drs Confalone, Sloane and Mallard (in his Profiler persona). It pulls out a lot of previously unknown aspects of our NCIS team's motivation. I think it reveals more. Gibbs tells Confalone "NCIS centers me. Without it...?". There is something deeply personal in the delivery of that line. I think it shows us that Mark Harmon is similarly attached to the production of his programme. Rock on!