Bob Lee and Isaac learn the world's greatest assassin is in the U.S. Flashbacks to a mission in Afghanistan reveal his identity. Nadine comes to Texas with suspicions of a conspiracy.

Anna Khaja, Dave Florek, E. Ambriz DeColosio, Emiliano Torres, Gina Gallego, Jerry Ferrara, John Marshall Jones, Lexy Kolker, Patrick Sabongui, Rob Brown, Terrell Carter, Todd Lowe, Tony Amendola, Troy Garity