Danny (Scott Caan) and McGarrett’s (Alex O’Loughlin) camping trip with Grace’s (Teilor Grubbs) troop of Aloha Girls takes a dangerous turn when an armed man (Tom Arnold) stumbles upon the group and takes McGarrett and one of the girls (Emily Alyn Lind) hostage. After relieving the troop of their cellphones, and shooting Danny in front of his daughter, the man takes McGarrett and young Lucy further into the jungle.
After breaking the girls out of the storage container, Danny sets off after his partner with the scout leader (Lesley Boone) who refuses to let him go off alone or leave her missing Aloha Girl in the hands of a madman who is frantically searching the jungle for a crashed plane containing millions in diamonds. McGarrett is able to get the upper hand on the kidnapper after discovering the diamonds but is unprepared for the sudden arrival of the man’s pissed-off M-16-wielding partner (Tom Schanley). With a little luck, and the timely arrival of his back-up, both McGarrett and Lucy are able to make it out of the jungle safely.
In the episode’s B-story Kono’s (Grace Park) relationship with Adam (Ian Anthony Dale) is tested with the release of Adam’s brother Michael (Daniel Henney) from prison. Chin’s concern about Kono’s connection with Adam and his brother proves to be warranted in the episode’s final scene involving Michael’s yet unknown nefarious purposes with Kono’s gun. The camping misadventure works well, and gives Danny something else on his list to complain about, and the foreshadowing of the ramifications for our B-story are likely to spell serious trouble for Kono and Five-0 later this season.