Steve McGarrett returns home to Oahu, in order to find his father's killer. The governor offers him the chance to run his own task force (Five-0). Steve's team is joined by Chin Ho Kelly, Danny "Danno" Williams, and Kono Kalakaua.

Thomas Magnum, a decorated former Navy SEAL, returns home from Afghanistan and applies his military skills to become a private investigator in Hawaii taking jobs no one else will—with the help of fellow vets T.C. Calvin and Rick Wright, and former MI:6 agent, Juliet Higgins.

Elite Bangladeshi CIA agent Masud Rana – codename MR-9 – teams up with an American CIA operative to bring down an international criminal organization headed by a ruthless businessman.

Desperate to prove himself a reformed citizen, Tyson Babineaux's history of violence plagues any chances of landing a normal job. Pressured by the threat of losing his family, Tyson unwittingly takes an unconventional interview at a private security firm. There, he's enticed by an offer that can give him a fresh start. But there's a caveat - he has to kill the other candidates to win the job.

Two intrepid internet ghost hunters travel to a ranch purportedly haunted by a gold-rush era Chinese sex worker. As their friendship rapidly deteriorates, a dark secret about one of the hunters’ connection to the case comes to light.