(S07E16) When it was announced that Gena Rowlands would be on 'NCIS' as a guest, playing Jethro's former mother-in-law, you just suspected that this was going to be something special. Sometimes it's difficult to live up to the expectations, for the creators as well as the fans watching. Fortunately, this show did live up to the expectations, especially for those who have always wanted to know more about Gibbs and his tragic past.