Season 6, episode 3

Ua ʻoʻoloku ke anu i na mauna (The Chilling Storm Is on the Mountain)

Name: Ua ʻoʻoloku ke anu i na mauna (The Chilling Storm Is on the Mountain)
Released: 2015-10-09

While Five-0 investigates a scuba diver’s death from a gun recently used in another murder, McGarrett prepares to propose to Catherine.