Callen and Sam work with Navy Captain Harmon “Harm” Rabb, Jr. to locate a group of ISIS sympathizers aboard the USS Allegiance. Also, Hetty enlists her friend, Navy Lieutenant Colonel Sarah “Mac” Mackenzie, to help obtain information from a Russian d... (more)iplomat.

Ahmed El-Mawas, Alyssa Diaz, Carl Chao, Catherine Bell, David James Elliott, Don Wallace, Erik Palladino, Faruk Amireh, Gil Birmingham, Guy Wilson, Kolio Kolev, Paris Benjamin, Sam Avishay, Spencer Daniels, Sprague Grayden, Sue Shaheen, Thomas Lumberg Jr., Tim True, Vachik Mangassarian