What had changed for Harmon "Harm" Rabb Jr. since viewers last saw him?
On NCIS: Los Angeles Season 10 Episode 23, the former JAG character popped up when Callen and Sam made their way to the Persian Gulf to meet the character.
The purpose of the mission was to find the location of ISIS sympathizers who were targeting military locations.
However, the mission proved to be a tough one because one of the people involve was linked to a member of the team.
Meanwhile, Hetty realized that her old friend Mac could help her out with another mission.
How did it all play out?
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.