Even as Marcus and Sam learn that they have been charged with treason against the United States, a greater threat within their own crew is brewing. Meanwhile, an old friend of Sam's, Paul Wells , pays Christine a visit and tries to ease her fears about her husband.

Cast: Andre Braugher, Scott Speedman, Daisy Betts, Camille De Pazzis, Dichen Lachman, Daniel Lissing, Sahr Ngaujah, Autumn Reeser, Jessy Schram, Robert Patrick, Jessica Camacho, Bruce Davison, Michael Gaston, Jay Hernandez, Jay Karnes