“NCIS” — Season 4

The fourth season of NCIS begins with one of the investigators being charged with assassinating an Iranian prisoner. Former Mossad intelligence agent Ziva David (Cote de Pablo), who was introduced last season, has been framed, and there’s only one man who can clear her name. Unfortunately, lead investigator Jethro Gibbs (Mark Harmon) has retired to Mexico. But since Harmon is the star of the show, Gibbs returns to the United States to help out his colleague.

“NCIS” — Season 3

With two solid seasons already banked, NCIS returns for a compelling third year with exciting plotlines and a slightly tweaked cast. The show’s second season ended with the brutal and shocking death of Caitlin Todd (Sasha Alexander). The first two episodes of this season deal with the aftermath of bringing her killer to justice and examining the emotional impact of her loss on the remaining members of the NCIS team, which is led by Jethro Gibbs (Mark Harmon).