Brett Zimmerman

With New Orleans decorated for Halloween, the NCIS team investigates the murder of a Naval Staff Judge Advocate found in a cemetery dressed in a Victorian costume with vampiric puncture wounds on her neck. Meanwhile, the team debates what Halloween night activity and costumes would be best. Paige Turco and Steven Weber guest star.

Tani and Junior go undercover at a gym to track down a deadly batch of steroids that's killing users, before the drugs claim any more victims. Also, Danny and MacGarrett sub as bodyguards for Danny's high maintenance ex-mother-in-law, Amanda Savage (Joan Collins), a wildly famous romance novelist with whom he has never gotten along.

Pride and the team reunite with conspiracy journalist Oliver Crane (Mark Gessner) after the source for his latest vigilante story is murdered. Also, Hannah's former partner, Liam Somers (Rob Benedict), surprises her in New Orleans and shares a shocking revelation about an old case.

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

Charlie is tempted by Sean's younger sister.