Upon continuing to investigate the apartment the CIA arrives, including Steve's ex-girlfriend Greer and her partner Miller to remove anything that could compromise a case.

After an autopsy Noelani informs Steve that traces of Gutta-percha were found in hair follicles of Hennessy's eyes, ears, and nose.

At the Five-0 Headquarters the team begins to put together torn burnt pieces of paper found in Hennessy's fireplace.

The Five-0 Task Force devises a plan to allow Steve to be captured by the members of the ship and plant false information with the CIA mole.

During a shootout between law enforcement and the ship’s armed guards, Steve manages to escape detainment and fights off his kidnappers.

[4][5] On August 22, 2018 it was reported by TVLine that Rochelle Aytes had been cast in a guest role as a character named Greer.

[8] Despite being credited in the opening title sequence Ian Anthony Dale, Taylor Wily, and Dennis Chun were absent from the episode.

[11][12] On August 13, 2018 it was announced that the season would have an advanced premiere screening along with and advanced premiere screening Magnum P.I..[13] The annual event known as "Sunset on the Beach", featuring interviews with the cast and crew as well as a special performance by Cyndi Lauper, was scheduled to take place on September 14, 2018 at Waikiki beach in Honolulu, Hawaii.

[17] Within seven days, by means of DVR and video on demand services the total number of viewers rose to 10.52 million.