Hawaii Five-0 (2010) - Season 9 -

: Adam joins the task force officially after he and Kono break up, a development that is revealed early in the season.

: A major arc involves the team tracking down Omar Hassan, who seeks revenge for his father's death during a past SEAL mission led by McGarrett and Joe White. Hawaii Five-0 (2010) - Season 9

: Titled "Pua A'e La Ka Uwahi O Ka Moe" (The Smoke Seen in the Dream Now Rises) , McGarrett dreams he is his grandfather solving a cold case in 1941, just days before the attack on Pearl Harbor. : Adam joins the task force officially after

: Former main cast members Michelle Borth (Catherine Rollins) and Taryn Manning (Mary Ann McGarrett) returned for guest appearances in episodes 11 and 23, respectively. Significant Storylines & Episodes : Former main cast members Michelle Borth (Catherine

: The season features ten starring roles, including Alex O'Loughlin (Steve McGarrett) and Scott Caan (Danny "Danno" Williams).