Hawaii Five-0's Steve McGarrett and Danny Williams will head to couples therapy during season 5, and the series' actors are itching to send their characters back.

McRollins fans can breath a sigh of relief, there is a chance that Catherine Rollins may return to Hawaii Five-0 during season 5.

Oahu will be surprisingly empty when Hawaii Five-0 returns for season 5. Oahu will be surprisingly empty when Hawaii Five-0 returns for season 5. No New Love Intrest For McGarrett On 'Hawaii Five-0', New 'Friendship' Brewing Steve McGarrett (Alex O'Loughlin) and Danny Williams (Scott Caan) will have no time to recover from Ian Wright's (Nick Jonas) surprising death before jumping into the premiere, and the team will be forced to deal with a seemingly abandoned island.

Hawaii Five-0's Wo Fat mystery was five years in the making, but Steve McGarrett will finally find out the truth about his nemesis in the series' 100th episode.