: A trap in North Korea that forces a mission to rescue Steve from Wo Fat.
: The NCIS: Los Angeles crossover involving a deadly smallpox threat.
: A tragic conclusion that reveals the shocking truth about McGarrett’s mother and forces Chin Ho into an impossible life-or-death choice. Season 2 - Hawaii Five-O Wiki | Fandom Hawaii Five-0 - Season 2
: Feature appearances by Ed Asner (returning to his role from the original series), James Caan (Scott Caan's real-life father), and a crossover event with NCIS: Los Angeles stars LL Cool J and Chris O’Donnell . Major Episodes
joins the task force temporarily as Homeland Security Agent Lori Weston . Terry O'Quinn recurs as Joe White , Steve’s former mentor. : A trap in North Korea that forces
: McGarrett's escape from prison and the disbandment of the Five-0 unit.
The second season of the reboot (2011–2012) follows the elite task force as they navigate high-stakes personal crises and explosive new investigations across 23 episodes. Season Overview Season 2 - Hawaii Five-O Wiki | Fandom
: Officer Kono Kalakaua faces an Internal Affairs investigation and is temporarily stripped of her badge, leading her to go undercover within a corrupt circle of former cops.