Shawn Mokuahi Garnett

A Secret Service agent is murdered while the president is travelling to Oahu. Meanwhile, as Thanksgiving approaches, McGarrett's Aunt Deb visits and shares a stunning secret.

While Max prepares to say his goodbyes, the team investigate a murder during a police convention on the island.

When the task force's long-time informant is accused of murder, McGarrett brings in an old friend to defend him.

O'ahu goes on lockdown as the team look for a terrorist who is using weaponised drones on civilians; McGarrett and Danno attend a review with a psychologist.

McGarrett meets a woman who helps him to reopen the last cold case his father investigated before dying.

A dangerous mission to retrieve a bomb containing uranium leads McGarrett and Danny deep into the jungle.