<Tr> <Td_colspan="2"> ← Previous Season 7 Next → Season 9 </Td> </Tr> <Tr> <Td_colspan="2"> List of NCIS episodes </Td> </Tr> <P> The eighth season of the police procedural drama NCIS premiered on September 21, 2010 in the same time slot as the previous season . </P> <P> The season story arc involves Ziva's largely - unseen boyfriend, Ray, and the CIA continuing to meddle in NCIS's day - to - day workings . Notable events include the terrorism and internal affairs threat during the "Enemies" two - parter, and the arrival of another Major Case Response Team from Rota, Spain, the team that Tony was offered to be lead of in the beginning of season four . The season ends on a five - part story arc involving the Port - to - Port killer that menaced both teams . The finale aired on May 17, 2011 . </P>

What season of ncis is the port to port killer in