Hawaii Five-0 (2010 TV series) season 8

Season 8 of Hawaii Five-0, the reimagining of the classic television series, premiered on CBS on September 29, 2017, and concluded on May 18, 2018. The season consisted of 25 episodes. The season saw changes in the main cast, notably the departures of original cast members Daniel Dae Kim (Chin Ho Kelly) and Grace Park (Kono Kalakaua) due to contract disputes concerning pay equity.

The core team consisting of Steve McGarrett (Alex O'Loughlin), Danny "Danno" Williams (Scott Caan), Lou Grover (Chi McBride), and Jerry Ortega (Jorge Garcia) continued to investigate crimes ranging from murder and terrorism to kidnapping and robberies within the state of Hawaii. New team members Meaghan Rath as Tani Rey and Beulah Koale as Junior Reigns were added to the main cast, providing fresh perspectives and skills to the Five-0 task force. Dennis Chun continued his recurring role as Sgt. Duke Lukela.

Season 8 continued the show's established formula of procedural crime-solving mixed with personal storylines for the main characters. Arcs included McGarrett dealing with his health issues, Danny navigating parenthood and business ventures, and Grover coping with family challenges. The season also featured several crossover events with other CBS shows. Recurring villains and new threats kept the team constantly challenged. The season finale provided a cliffhanger ending, setting the stage for future storylines and team dynamics.