Guest Starring: Yancey Arias (ATF Special Agent Miguel Aritza), Patrick Brennan (Zed Hastings), Clare Carey (Anna Boudreau), Grant Harvey (Conner), Dr. John (Himself)
Co-Starring: Rya Meyers (Sara Strand), Seth Dousman (Navy Chief Petty Officer Pete Olson), Michael Krikorian (Navy Petty Officer 2nd Class Miles Grayson), David Kency (Navy Commander Joseph Coleman), Elliott Grey (Brant Boudreau), Brian Stapf (Mark Yaden), Christopher R. Gunter (Militia Man)
Written By: Jeffrey Lieber
Directed By: James Whitmore, Jr.
Ep: 25
Shadow Unit
Guest Starring: Derek Ray (Navy Chief Petty Officer Ryan Jansen), Julio Cesar Cedillo (Edgar Baco), Mitchell Fink (David Dalton), Lily Holleman (Emily Jansen)
Co-Starring: Matthew Jones (Navy Commander Neal Salter), James Alan Ricker II (Navy Petty Officer Wyatt Granier), Michael Larson (Jonah Penn)
Written By: Christopher Silber
Directed By: James Hayman
Ep: 26
Touched By the Sun
Guest Starring: Chad Michael Collins (Navy Lieutenant Val Franco), James MacDonald (Marine Captain Tom Garrett), Christopher Meyer (Danny Malloy), Ellen Wroe (Navy Lieutenant Lindsay Garrett), David Clayton Rogers (Kellan Falk), Sumalee Montano (Melanie Pratt)
And: Leslie Hope (SecNav Sarah Porter)
Co-Starring: Dani Dare (CJ Malloy), Alec Rayme (Navy Lieutenant Mike Dougan), Trey Burvant (Navy Commander Grant Wilson), Robert Larriviere (Doctor Ned Fiske), Odessa Sykes (Stella), Ash Taylor (Lead NSC Representative Dave Schram), Maria Soccor (Wife), Carly Plotkin (Little Girl), Joshua Guidry (Pallbearer)
Written By: Laurie Arent
Directed By: Edward Ornelas
Ep: 27
I Do
Guest Starring: Titus Makin, Jr. (Navy Petty Officer Boone), Abbie Cobb (Alison Hewitt), Matthew Florida (Navy Petty Officer Eric Hewitt), Matt Battaglia (Air Force Lieutenant Colonel Snow), Elizabeth Hendrickson (Beth), Shauna Rappold (Megan Griggs), Maxwell Jenkins (Ryan Griggs)
Co-Starring: Will Koberg (Tim Banks), Harlon Miller (Kevin Mitchell), Hawn Tran (Steve Dunn), Teddy Gathmann (Steve Wilensky), Jody Mullins (Navy Lieutenant Max Griggs), Natalie Pero (Navy Lieutenant Ellen Hale), Edward Carter Simon (Navy Lieutenant Bradshaw), Jhonny Blaze (Man), Kelsey White (Angry Woman)
Written By: Sam Humphrey
Directed By: Tony Wharmby
Ep: 28
Foreign Affairs
Guest Starring: Shanley Caswell (Laurel Pride), Kate Beahan (ADFIS Agent Naomi Parsons), Meg Steedle (Cheryl Evans), Joe Egender (Luke Elliott)
Co-Starring: Martin Bradford (Ross P), Donny Boaz (Navy Lieutenant Brad Ryder), Dominic Alexander (Sugar Wells), Dalton Gray (Chas), Savannah Desormeaux (Janel), Michael A. Howell (Bomb Tech)
Written By: Sanford Golden & Karen Wyscarver
Directed By: Laura Belsey
Ep: 29
Insane in the Membrane
Guest Starring: Lawrence Adimora (Kendrick Lewis), Nelson Lee (Roger Liu), Sunil Malhotra (Vinjay Singh)
And: Steven Weber (Councilman Douglas Hamilton)
Co-Starring: Camille Balsamo (Navy Petty Officer Sofia Velez), Dustan Costine (Vincent), Tim J. Smith (Anthony Cousins), Caroline Hebert (Navy Petty Officer Kelsey Weaver), Dawntavia Bullard (Young Sonja), Dawn C. Hamil (Young Marion), Chris Marroy (Hamilton's Aide), Chima Chekwa (Thug), Brandon Cunningham (Lookout Boy)
Written By: David Appelbaum
Directed By: Leslie Libman
Ep: 30
Broken Hearted
Guest Starring: Benjamin Papac (Max "PINZ0" Pinzon)
And: Annie Potts (Olivia Brody)
Co-Starring: Jannette Sepwa (Janis Leary), Jesse Malinowski (Hospital Corpsman Wesley Mott), Cariella Smith (Hospital Corpsman Aleah Baldwin), Janeline Condez Hayes (Doctor Susan Gatley), Wes Cannon (Master at Arms #2), Caroline Fourmy (Nurse)
Written By: Zach Strauss & Greta Heinemann
Directed By: Elodie Keene
Ep: 31
Confluence
Guest Starring: Jay Thomas (Marc Maslow), Alex Fernandez (Hugo Garza), Kirsten Nelson (Vivian Lambert), Patrick Brennan (Zed Hastings), Johnny Sneed (Don Lambert)
Guest Starring: Jessica Tuck (Sheila Fontaine), Shani Atias (Francesca "Frankie" Alvarez), Jason Gray-Stanford (Mickey), Michael Grant Terry (Toby Fontaine)
Guest Starring: Alexandra Metz (Billy Hart), Christopher Berry (Oliver Fray)
Co-Starring: Kenneth Brown (Phillip Hart), Patrick Reginald Walker (NOPD Officer Pete Grange), Bowie Hamilton (Ed Tagget), Ninja Devoe (News Reporter), Amy Grasse (Navy Yeoman), Donald Link (Himself), Serenity Neil (Lisa Hart)
Written By: Sam Humphrey
Directed By: Mary Lou Belli
Ep: 34
Blue Christmas
Guest Starring: Christina Cox (NOPD Detective Dinah Clark), Christopher Meyer (Danny), Rick Peters (Navy Commander Thomas Freeman), Erica Dasher (Sofia Freeman), Marcus Lyle Brown (Master at Arms Daryl Brown)
Co-Starring: Dani Dare (CJ Malloy), JC Gonzalez (Jake), Emily Marie Palmer (Beth), Jeff Pope (Ronnie Doyle), Daniel Francois (Alonzo Brown), Elise Fyke (Shelly Freeman)
Written By: Zach Strauss
Directed By: Tony Wharmby
Ep: 35
Sister City, Part 2
Special Guest Stars: Mark Harmon (NCIS Special Agent Leroy Jethro Gibbs), Pauley Perrette (Abby Sciuto), Brian Dietzen (Jimmy Palmer), Emily Wickersham (Probationary NCIS Agent Eleanor "Ellie" Bishop)
And: David McCallum (Dr. Donald "Ducky" Mallard)
Guest Starring: Tyler Ritter (Luca Sciuto), Cassidy Freeman (Eva Azarova), Tina Benko (Paulina Kurteva), Bryan Batt (Dalton Greenbrick), Samrat Chakrabarti (Jenner Blye), Alex Quijano (Blake Huxley), Ilia Volok (Burley Man)
Co-Starring: Alexander Babara (Yanov)
Written By: Christopher Silber
Directed By: James Hayman
Ep: 36
Undocumented
Guest Starring: Brian McNamara (ICE Agent Randy Wilson), Marlene Forté (Rita Ortega), Max Arciniega (Victor Ortega), Andrene Ward-Hammond (Lieutenant Harper)
Co-Starring: Karmen Capella (Ana), Jabari Thomas (Benjamin), Clint James (Karl), John Bostic (Sheldon), Natan Cruz (Petty Officer 2nd Class Mateo Ortega), Lidia Porto (Martina), Dayana Rincon (Carla), Ricky Catter (Luis), Cassie Hernandez (Claudia Ortega), Melissa Collado (Interpreter), Jonathan Ralph Fritschi (Gangbanger)
Written By: David Applebaum
Directed By: Frederick E.O. Toye
Ep: 37
Father's Day
Guest Starring: Lee Tergesen (Mike Spar), Chris L. McKenna (NOPD Officer David Tate), David Starzyk (Brad Curry), James Dumont (Tom Bujei), Chasty Ballesteros (Angela Goodwin)
And: Steven Weber (Mayor Douglas Hamilton)
Co-Starring: Brandi Wilson (Kelly Grace), Jon Cleary (Himself), Glen David Andrews (Himself), Michael Dardant (Silver Man), Deanna Meske (Lily Bujei), Dominique L. Hayes (Waitress)
Written By: Sam Humphrey
Directed By: Dennis Smith
Ep: 38
No Man's Land
Guest Starring: Dustin Seavey (Petty Officer 2nd Class Corpsman Nolan Griffith), Chris McGarry (CIA Agent Adam Calloway), Sean Patrick Thomas (Navy Lieutenant Commander Mark Jacoby), Helen Eigenberg (Mariana Griffith), Said Faraj (Aman Bashir)
Guest Starring: Samaire Armstrong (Marion Watkins), Joe Holt (DEA Agent Will Banks), Jayson Warner Smith (Payton Kirk)
Co-Starring: Kristina Emerson (Mama Gator), Mike Mayhall (Chief Petty Officer Jim Tobin), Cindy Hogan (Auntie Shay), James Evermore (Nathan Litke), Jaynee-Lynne Kinchen (Brianne), Maureen Brennan (Cook), Oscar Gale (Security Guard), Taylor Faye Ruffin (Josie), Adam Larrabee (SWAT Team Leader), Michael Scott (Driver)
Co-Starring: Matt Socia (Martin Gorman), Noelle Bercy (Madison), Anne Nichols Brown (Ellie), Tim Bell (Driver)
Written By: David Appelbaum
Directed By: Bethany Rooney
Ep: 42
Means to an End
Guest Starring: Shanley Caswell (Laurel Pride), Julie Ann Emery (NCIS Special Agent Karen Hardy), Patrick Brennan (Zed Hastings), Barry Shabaka Henley (Baton Rouge Detective Todd Lamont), Kathleen Munroe (Anita Karr), Matthew Alan (Troy Spooner)
Co-Starring: Joel K. Berger (Reggie Clifton)
Written By: Christopher Silber
Directed By: Alrick Riley
Ep: 43
Second Line
Guest Starring: Gary Basaraba (Dr. Steven Bellamy), Darri Ingolfsson (Karl Baptiste), Bert Belasco (Alexander Hanson), Devyn Tyler (Amelia Boyd)
Co-Starring: Silas Cooper (Commander Jim Caron), Kate Adair (Josie), Davin Smith (Navy Reservist James Boyd), Chauncey Slack (Male Family Member)
Written By: Nancylee Myatt
Directed By: Tony Wharmby
Ep: 44
Collateral Damage
Guest Starring: Nicholas Lea (Army Colonel Samuel Nilsen), Jude Ciccolella (Former Army Colonel David Peterson), John Getz (Army General Owen Matthews), Clark Freeman (Walt Jeffries), Katie Savoy (Navy Lieutenant Rebecca Peterson)
Co-Starring: Wendy Miklovic (Head of Security), Denzel Johnson (Private Concierge), Trina Lafargue (Pretty Girl)
Special Live Musical Performances By: Rebirth Brass Band, Robin Barnes - New Orleans' Songbird
Written By: Cathryn Humphris
Directed By: James Whitmore, Jr.
Ep: 45
Help Wanted
Guest Starring: Ivan Sergei (Homeland Security Agent John Russo), Skipp Sudduth (Blake Jarrett), Molly Hagan (Elaine Jarrett), Tom Schanley (Anthony Flanders), Melanie Merkosky (Navy Culinary Specialist Danielle Jarrett), Dave R. Davis (JJ Taylor)
Co-Starring: David Alexander (Navy Captain David Estes), Alex Collins (FBI Agent Walker), Rachel Guidry Whittle (FBI Agent Davis), CJ Hunt (Navy Culinary Specialist Patrick Burke), Kristin Witterschein (Nurse), John Besh (Himself), Gary Clark, Jr. (Street Musician), Susan Spicer (Herself), Leah Chase (Herself), Sue Zemanick (Herself), Gene Todaro (Himself)
Written By: Sam Humphrey
Directed By: Terrence O'Hara
Ep: 46
The Third Man
Guest Starring: Ivan Sergei (Homeland Security Agent John Russo), Kaitlyn Black (Judy Brown), Jared Day (Michael Buckley)
Co-Starring: Matt Biedel (Arthur Brown), Kiley Casciano (Camille)
Written By: David Appelbaum & Zach Strauss
Directed By: Bethany Rooney
Ep: 47
Sleeping With the Enemy
Guest Starring: Ivan Sergei (Homeland Security Agent John Russo), Toni Trucks (CGIS Agent Joan Swanson), Cooper Thornton (Coast Guard Captain Stark), Stephanie Erb (Molly Layne), Jared Day (Michael Buckley)
Co-Starring: Douglas M. Griffin (Garrett Layne), Tony Winters (Deputy Secretary of DHS), Mark Ashworth (Bomb Maker)
Special Musical Performance By: Walter "Wolfman" Washington and the Roadmasters