Brett Zimmerman

Tani and Junior go under cover at a gym to track down a deadly batch of steroids. Meanwhile, Danny and McGarrett work as bodyguards for Danny's ex-mother-in-law, a famous romance novelist with whom he has never gotten along.

Amidst Halloween festivities in New Orleans, a naval staff judge advocate dressed in a costume is found dead in a cemetery. The team debates Halloween costumes and activities.

The team confer with conspiracy theorist Oliver Crane, when the source for his latest story is murdered. Meanwhile, Hannah's former partner, Liam Somers, has a shocking revelation for her.

When Sean's sister comes for a visit, he tells Charlie not to have sex with her. Patrick and Lacey discover that they are dating the same man.

Magnum and Rick make a shocking discovery in the Captain Greene case, Higgins and TC head to Maui to help an eccentric billionaire find the owner of a drone that has been harassing him, and Shammy aids Kumu after an incident occurs at La Mariana.