Ep 21. Makani 'Olu a Holo Malie (Fair Winds and Following Seas)

In Hawaii Five-0 season 4 episode 21, titled "Makani 'Olu a Holo Malie" (Fair Winds and Following Seas), the team investigates a murder case that involves a group of treasure hunters. The victim is a diver named Kai, who was working with a group of people searching for a sunken treasure. When Kai's body is found with bullet wounds, Five-0 is called to the scene to find out who the killer is.

The team starts investigating the case by gathering information about the group of treasure hunters. They find out that Kai's partner, Ryan, was having an affair with Kai's wife, Megan. During their investigation, Steve and Danny team up with Megan and Ryan to try to find out who the shooter is. They manage to convince the two to come clean about their affair and any other possible motives they might have had for killing Kai.

As the investigation continues, Steve and Danny also discover that there are other people who are interested in the sunken treasure, including a notorious criminal named Hiro Noshimuri. With the help of Kono, they manage to track down Hiro and confront him about his involvement in the case. However, Hiro denies any involvement and claims that he only knew about the treasure from a friend.

As the team gets closer to solving the case, they find out that the shooter is actually a member of the treasure hunting group. His name is Tim and he had a hidden agenda all along. Tim wanted to find the treasure for himself and was willing to kill anyone who got in his way. He had even gone so far as to steal and replace some of the necessary diving gear that caused Kai's death.

In the end, Tim is caught and brought to justice for his crimes. The team also manages to recover the stolen diving gear, which helps solve the mystery of Kai's death. With the case closed, the team is free to enjoy the beautiful views of Hawaii and the fair winds and following seas that the state has to offer.

Overall, "Makani 'Olu a Holo Malie" is an exciting episode of Hawaii Five-0 that takes viewers on a journey through the world of treasure hunting and murder. The episode is full of action, drama, and suspense and is sure to keep audiences on the edge of their seats from beginning to end. With great performances by the entire cast and a thrilling storyline, this episode is not one to miss for fans of the show.