Callen and Sam work with Captain Harmon Rabb, the former JAG, who is now the XO on the USS Allegiance to stop ISIS sympathizers from attacking U.S. aircraft carriers.
Did You Know?
With Harmon Rabb holding the rank of Captain and still flying, his position on the carrier should be Commander of the Air Group, or CAG, not the Executive Officer or XO. He may have been doing some type of other flying such as qualifications. The role of the CAG was played by Terry O'Quinn
(1995) as Captain and later Admiral Thomas Boone, who appeared 10 times. See more