[3] On March 13, 2014, it was announced that Jorge Garcia was promoted to a series regular beginning with the fifth season.

[4] Five-0 investigate the deaths of two tourists who were hiking on the mountains, and find that the culprit is an unmanned aerial vehicle fitted with automatic weapons.

In the meantime, Danny Williams (Scott Caan) and Steve McGarrett (Alex O'Loughlin) attend a mandatory psychological evaluation.

Adam Noshimuri (Ian Anthony Dale) proposes to Kono (Grace Park).

McGarrett learns that Ellie was the daughter of Paul Clayton, who was killed 20 years ago in a supposed robbery gone wrong.