• Guest Starring: Nicholas Holmes (Joel Hynek), Robert John Burke (William Fairchild), Matt O'Leary (Lieutenant Henry "Coop" Fuller), Ian Tracey (Mysterious Man)
• Co-Starring: Michael Bean (Doctor), Ambrose Gardener (Tech), Janet Glassford (Cashier), Jake Manley (Toby McManus), Cameron McDonald (Commanding Officer), Jill Morrison (Faye), John Shaw (Roger), Justine Warrington (Secretary)
• Written By: David O'Leary
• Directed By: Robert Stromberg

• Guest Starring: Nicholas Holmes (Joel Hynek), Currie Graham (Russian Spy), Ian Tracey (Mysterious Man), Brooke Smith (Sara), Mary Black (Evelyn Myers), Kiefer O'Reilly (Will), Beatrice Kitsos (Lori)
• Co-Starring: Christopher Rosamond (Donnie), Blake Stadel (Local Sheriff), Trevor Lerner (Townsperson), Billy Wickman (Orderly)
• Written By: Sean Jablonski
• Directed By: Robert Stromberg

• Guest Starring: Nicholas Holmes (Joel Hynek), Robert John Burke (William Fairchild), Adam Greydon Reid (Donald Keyhoe), Steven Williams (Nathan), Tony Alcantar (Professor Carlton Fanshaw), Heather Doerksen (Donna)
• Co-Starring: Chad Rook (Randy Pitts), Justin Stone (Skip), Don McLeod (Arnold), David Coakley (Staff Sergeant Weeks), Peter Skagen (Sheriff), Stephanie Bennett (Leigh-Ann), Jesse Irving (Tom Wilson), Sebastian Greaves (Charlie), Gaalen Engen (Salesman), Craig March (Andy), Francesca Bianchi (Gina), Colin Murdock (Radio Host), Joshua Hinkson (Richard), Shauna Hansen (Woman), Chris Robson (Middle-Aged Man), Elyse Maloway (Student #1), Deborah Trotchine (Student #3), Chris Shields (Byron)
• Written By: Harley Peyton
• Directed By: Pete Travis

• Guest Starring: Nicholas Holmes (Joel Hynek), Thomas Kretschmann (Wernher von Braun), Matt O'Leary (Lieutenant Henry "Coop" Fuller), Matt Bellefleur (PFC Wakefield)
• Co-Starring: Scott Perrie (Dan Davis), Eric Breker (Klaus), Jill Morrison (Faye), Chad Ellis (Captain Chiles), Mercedes Gendron (Flight Attendant), Annette Reilly (Mother), Evan Frayne (Businessman), Michael Meneer (Director), Eric Regimbald (A.D.)
• Written By: David O'Leary & Thania St. John
• Directed By: Pete Travis

• Guest Starring: Nicholas Holmes (Joel Hynek), Robert John Burke (William Fairchild), Currie Graham (Russian Spy), Matt O'Leary (Lieutenant Henry "Coop" Fuller), Heather Doerksen (Donna), Patrick Gallagher (Randall Kavanagh), Nadine Lewington (Kelly), Darren Mann (Billy)
• Co-Starring: Ben Cotton (Chris), Donny Lucas (Dave), Art Kitching (Gary), Fulvio Cecere (Officer Davis), Dee Jay Jackson (Security Guard), Jill Morrison (Faye)
• Written By: Emily Brochin
• Directed By: Norma Bailey

• Guest Starring: Michael Imperioli (Master Sergeant Edward Rizzuto), Robert John Burke (William Fairchild), Currie Graham (Russian Spy), Matt O'Leary (Lieutenant Henry "Coop" Fuller), Ian Tracey (Mysterious Man), Heather Doerksen (Donna), Max Lloyd-Jones (McCasky)
• Co-Starring: Rohan Campbell (Rourke), John Emmet Tracy (Phil), Casey Manderson (Steve), Shaun Alphonso (Private Reilly)
• Written By: Harley Peyton
• Directed By: Norma Bailey

• Guest Starring: Michael Imperioli (Master Sergeant Edward Rizzuto), Graham Greene (David Akule), Kevin Christy (Scoutmaster Emmett), Matt O'Leary (Lieutenant Henry "Coop" Fuller), Ian Tracey (Mysterious Man), Ari Dalbert (Brian), April Telek (Dorothy York), Ty Olsson (Sheriff Donnelly)
• Co-Starring: Robert Egger (Citizen #1), Brenda Bauder (Citizen #2), Mason McKenzie (Bobby), Nolan Hupp (Eric), Katie Gray (Mother)
• Written By: Aaron Rapke & Stewart Kaye
• Directed By: Thomas Carter

• Guest Starring: Nicholas Holmes (Joel Hynek), Robert John Burke (William Fairchild), Currie Graham (Russian Spy), Matt O'Leary (Lieutenant Henry "Coop" Fuller), Jonathan Whitesell (Corporal Wells), Bob Frazer (Patrol Leader), Ian Tracey (Mysterious Man)
• Co-Starring: Kurt Evans (Jack), Dion Riley (Comm Officer), RJ Fetherstonhaugh (Corporal Vaughn), Dalias Blake (Soldier #1), Kurt Ostlund (Soldier #2), Thomas Elms (Soldier #3), Nathanael Vass (Dale), Alex Barima (Gene), Austin Eckert (MP #1), Trevar Fox (MP #2)
• Written By: Thania St. John
• Directed By: Thomas Carter

• Guest Starring: Nicholas Holmes (Joel Hynek), Currie Graham (Russian Spy), Malcolm Goodwin (Thomas Mann), Khalilah Joi (Vivian Mann), Ian Tracey (Mysterious Man)
• Co-Starring: Jill Morrison (Faye)
• Written By: Sean Jablonski
• Directed By: Alex Graves

• Special Guest Star: Bob Gunton (President Truman)
• Guest Starring: Nicholas Holmes (Joel Hynek), Robert John Burke (William Fairchild), Ian Tracey (Mysterious Man)
• Co-Starring: Kurt Evans (Jack), Nick Fontaine (Airplane Captain), Brendon Zub (Radar Tech), Fred Henderson (Congressman Daniels), Tom Tasse (Congressman Mahaffey), Joseph Gallaccio (FBI Agent), Andrew Kavadas (Senior FBI Agent), Deni DeLory (Secretary), Darren Dolynski (Reporter #1), Adam Beauchesne (Reporter #2), Sean Hewlett (Reporter #3), Glenn Ennis (Taxi Driver)
• Written By: David O'Leary
• Directed By: Alex Graves