Pyramid, is the twenty-fourth and final episode in Season Eight of NCIS, and the 186th of the series as a whole. This episode also marks the final appearance of SecNav Phillip Davenport, NCIS Special Agent Gayne Levin and Lt. Jonas Cobb respectively.
As Jonas Cobb, the "Port to Port" killer continues his revenge against those responsible for Operation Frankenstein, the NCIS team struggle to stop Cobb once and for all but things spin out of control when Cobb takes twopersonnel associated with NCIS hostage, forcing the team into a deadly game of cat and mouse against Cobb as they fight to save their kidnapped colleagues before it's too late.
Rule 16 is revealed to be: "If someone thinks they have the upper hand, break it".
It's revealed that Abby has had motion-sense lights installed in her lab, lights that can be turned on or off whenever she claps her hands.
It's also shown that Vance had has his office modified to have a Sensitive Compartmented Information Facility or (SCIF) so that even the most secretive of cases or information can be discussed without any outside interference.