Catherine retires from her military career on Hawaii Five-O. "Kupu'eu (Fallen Hero)" is the fifth episode of the show's fourth season.
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Kono puts her relationship with Adam on the line when she asks Catherine for a favor on Hawaii Five-O. "Ho' opio (To Take Captive)" is the 22nd episode of the show's third season.
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Catherine goes undercover at the local roller derby to catch a killer on Hawaii Five-O. "Na Ki'i (Dolls)" is the 18th episode of the show's third season.
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Hawaii Five-0 Quotes

Danny Williams: Keoki had a lot of friends, huh?
Steve McGarrett: Yeah. Good men always do.

Chin: Listen, I hope you know that everything I did was to protect you.
Malia: I didn't want your protection, Chin. I wanted- When it was over between us everyone thought I was the one who left you. That really hurt.