Hawaii Five-0 continues with its gripping ways of solving a crime. While the show's production has been on the limelight for shaking up the cast, of particular attention will be provided by the emergence of new plots.

The exit of actors Grace Park and Daniel Dae Kim who played Kono Kalakaua and Chin Ho Kelly, respectively, on the show has offered a fresh perspective heading into Season 9. With that in mind, the arrival of recruits Meaghan Rath as Tani Rey and Beulah Koale as Junior Reigns will, somehow, make up for lost ground.

The circumstances surrounding episode 15 begins with the murder of someone close to the elite team. Actor and film maker Hale Mawae's role as Luka Palakiko gets killed. The incident has been especially troubling to his close pal Flippa who is being played by Shawn Mokuahi Garnett. The two have been on the phone when Luka gets shot.

Steve McGarrett, assumed by Alex O'Loughlin, and his team gets on the investigation trail at once. Somehow, along the way, a bigger threat will be unveiled. A terrorist group is out to sow confusion and chaos on the island. It has been uncovered that key cities across the nation will also be bombed.

What makes the issue even more complex is the fact that an assassin is also looking for the assailant. With this mind, it will just be a matter of time before the Hawaii Five-0 team crosses path with the hitman. However, the state's elite must get to the killer first, or the investigation will go nowhere.

To get the probe rolling, Kimee Balmilero's Dr. Noelani Cunha provides McGarrett the essential details. Aside from the nine deep stab wounds, the doctor also shares the presence of long blonde hair. Such evidence leads to 15-year old patient Annie Kehr who is depicted by Maddie Nichols.

Luka is working as a family therapist. At that time, he has counseling Annie. It has been found that due to the girl's LGBTQ tendencies, she will be sent to a conversion therapy school. What makes the concern complex is the fact that Hawaii has banned such type of rehabilitation.

Meanwhile, a disturbing piece of evidence turns out inside Luka's van. Jorge Garcia's character Jerry has found a traffic video belonging to ex-felon Conner Russell. The concern now is to determine the connection between Russell and Annie's parents who view their daughter's personality in a bad light.

Adding fuel to the riveting episode is the hurricane which is set to hit Oahu. This time, Tani Rey will be on close storm watch.