Moronai Kanekoa

A nuclear-powered Russian satellite is knocked out of orbit. The new Director of Homeland Security must reunite the team in order to divert the satellite and stop it from detonating above southern California.

When an exotic pink diamond is replaced by a forgery, the FBI suspect Neal of the crime.

Adam, Junior, and Tani travel to the bottom of the Pacific Ocean when a murder takes place in a remote underwater lab - and the killer may still be on board.

Hina and Kainalu assist the US Coast Guard in searching for two missing snorkelers left behind in the middle of the ocean; Sonny takes matters into his own hands about Vince; Em receives a job offer from a wealthy person.

Em takes the day off to spend time with her mum, but races into action when she comes across an unresponsive cave diver; Will confides in Vince about his personal anger issues; Laka searches for a missing local.

While monitoring the beach, Laka and Will notice a toxic smell coming from a van and discover a kid unconscious and surrounded by drug paraphernalia; Em befriends a disabled veteran; Hina finally confesses her feelings to Kainalu.