While the NCIS season finale will pay tribute the late Ralph Waite, it will also reveal some new details about Leroy Jethro Gibbs (Mark Harmon).

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"It's a really touching, emotional look back and looking forward at Gibbs and the loss of his father," executive producer Gary Glasberg told TVGuide.com. "[Fans will get] more insight into what makes Gibbs who he is, some stuff from his childhood and morally, just who he is."

During the episode, titled “Honor Thy Father,” Gibbs will find out about the death of his father Jackson (Waite) and will head to his childhood home to mourn. Fans will also see a younger Jackson, played by actor Rob Norton.

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"Everyone involved really wanted to do this," Glasberg also told the publication. "We wanted to do this properly and say goodbye to a character that we all really enjoyed writing over the years, and goodbye to an actor that meant a lot to us. ... This was such a significant event for us, both on-screen and off, that we wanted to handle it properly and do it well, and let people mourn the passing of Gibbs' dad with him."

Waite, a veteran actor whose career spanned over 50 years, died on Feb. 13 at the age of 85.

-- The NCIS season finale will air on Tuesday at 8/7c on CBS.

Tags: NCIS