Madalyn Horcher

After the body of a navy lieutenant is discovered aboard a destroyer during a tiger cruise, Gibbs, Quinn and Palmer travel out to sea to investigate.

Voight restricts Halstead to desk duty. Burgess's works with her first confidential informant to track down a ruthless pimp and break up his prostitution ring.

Col. Ethan Willis joins the team, bringing new techniques and technologies learned in the field of combat to the hospital; Willis and Mike take a helicopter to Malibu to help shark bite victims; Jesse welcomes new residents.

An international crime boss offers to surrender if permitted to return to the United States in time to watch his daughter walk down the aisle, leading MacGyver and the team to crash the wedding to ensure he does not flee.

McGarrett and Kono suspect that an abused young girl may be the victim of a sex trafficking ring on the Island, and Chin and Grover investigate a murder at a sober living facility.

A murder at a rave in the desert leads DB Russell and his team to unearth a harrowing case of two sisters held as sex slaves.