| No. | Episode | Season | Air Date | |
|---|
| 50 | Building 26 | Season 3 | 2/16/2009 | |
| 49 | Trust and Blood | Season 3 | 2/9/2009 | |
| 48 | (Volume Four: Fugitives) A Clear and Present Danger | Season 3 | 2/2/2009 | |
| 47 | Dual | Season 3 | 12/15/2008 | |
| 46 | Our Father | Season 3 | 12/8/2008 | |
| 45 | The Eclipse: Part 2 | Season 3 | 12/1/2008 | |
| 44 | The Eclipse: Part 1 | Season 3 | 11/24/2008 | |
| 43 | It's Coming | Season 3 | 11/17/2008 | |
| 42 | Villains | Season 3 | 11/10/2008 | |
| 41 | Eris Quod Sum | Season 3 | 10/27/2008 | |
| 40 | Dying of the Light | Season 3 | 10/20/2008 | |
| 39 | Angels And Monsters | Season 3 | 10/13/2008 | |
| 38 | I Am Become Death | Season 3 | 10/6/2008 | |
| 37 | One of Us, One of Them | Season 3 | 9/29/2008 | |
| 36 | The Butterfly Effect | Season 3 | 9/22/2008 | |
| 35 | (Volume Three: Villains) The Second Coming | Season 3 | 9/22/2008 | |
| 34 | Powerless | Season 2 | 12/3/2007 | |
| 33 | Truth & Consequences | Season 2 | 11/26/2007 | |
| 32 | Cautionary Tales | Season 2 | 11/19/2007 | |
| 31 | Four Months Ago... | Season 2 | 11/12/2007 | |
| 30 | Out of Time | Season 2 | 11/5/2007 | |
| 29 | The Line | Season 2 | 10/29/2007 | |
| 28 | Fight or Flight | Season 2 | 10/22/2007 | |
| 27 | The Kindness of Strangers | Season 2 | 10/15/2007 | |
| 26 | Kindred | Season 2 | 10/8/2007 | |
| 25 | Lizards | Season 2 | 10/1/2007 | |
| 24 | (Volume Two: Generations) Four Months Later... | Season 2 | 9/24/2007 | |
| 23 | How to Stop an Exploding Man | Season 1 | 5/21/2007 | |
| 22 | Landslide | Season 1 | 5/14/2007 | |
| 21 | The Hard Part | Season 1 | 5/7/2007 | |
| 20 | Five Years Gone | Season 1 | 4/30/2007 | |
| 19 | 0.0007% | Season 1 | 4/23/2007 | |
| 18 | Parasite | Season 1 | 3/5/2007 | |
| 17 | Company Man | Season 1 | 2/26/2007 | |
| 16 | Unexpected | Season 1 | 2/19/2007 | |
| 15 | Run! | Season 1 | 2/12/2007 | |
| 14 | Distractions | Season 1 | 2/5/2007 | |
| 13 | The Fix | Season 1 | 1/29/2007 | |
| 12 | Godsend | Season 1 | 1/22/2007 | |
| 11 | Fallout | Season 1 | 12/4/2006 | |
| 10 | Six Months Ago | Season 1 | 11/27/2006 | |
| 9 | Homecoming | Season 1 | 11/20/2006 | |
| 8 | Seven Minutes to Midnight | Season 1 | 11/13/2006 | |
| 7 | Nothing to Hide | Season 1 | 11/6/2006 | |
| 6 | Better Halves | Season 1 | 10/30/2006 | |
| 5 | Hiros | Season 1 | 10/23/2006 | |
| 4 | Collision | Season 1 | 10/16/2006 | |
| 3 | One Giant Leap | Season 1 | 10/9/2006 | |
| 2 | Don't Look Back | Season 1 | 10/2/2006 | |
| 1 | (Volume One: Genesis) In His Own Image | Season 1 | 9/25/2006 | |