Danny and McGarrett head to college when a professor is found dead in a tub of acid on Hawaii Five-O. "Kapu" is the 12 episode of the show's third season.
When someone is targeting police officers, they wonder if McGarrett may be on the list on Hawaii Five-O. "Hookman" is the 15th episode of the show's third season.
Danny and Gabrielle reconnect on the season finale of Hawaii Five-O. "Aloha, Malama Pono (Farewell and Take Care)" is the 24th episode of the show's third season.
Five-O crashes a wedding when one of the guests turns up murdered on Hawaii Five-O. "A la La Aku (From this Day Forward)" is episode four of the show's fourth season.
Danny and McGarrett end up handcuffed together when they are kidnapped on Hawaii Five-0. "Na hala a ka makua (Sins of the Father)" is the 14th episode of the show's fourth season.
Scott Caan and Melanie Griffith are featured in this Hawaii Five-0 scene. The latter is on board as Danny's mother - and she has some news for her son.
Danny tries to get his parent back together on Hawaii Five-O. "Ma Lalo o ka 'Ili (Beneath the Surface)" is the 17th episode of the show's fourth season.