Hawaii Five-0, Season 6

[After closing the case]

Jerry:
Hey, did you know the Naval Investigative Service kept Musaka under surveillance even after the war was over?

Steve:
No, I didn't know that.

Jerry:
Check it out. Obviously, they only knew him as Youshi Tamuro, but they considered him a person of interest. Kept tabs on him for years. But the guy was a model citizen, put down roots, even married a local girl-- Olina Hoku. They actually met before Pearl Harbor, but they stayed in touch the entire time he was in the internment camp.

Steve:
Wait a minute. She's the reason he changed his mind. Look, Musaka came here for one purpose, and that was to do us harm, right? Then he falls for this girl. And in the end, his love for her outweighed his loyalty to his country.

Jerry:
Love's a pretty powerful thing.

Steve:
Yes, it is.