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| Aflevering | Eerste uitzending |
|---|---|
| S04E01 - Battle Cry | 03/06/2011 |
| S04E02 - No Escape | 10/06/2011 |
| S04E03 - Ghosts in the Machine | 17/06/2011 |
| S04E04 - The Devil's Icebox | 24/06/2011 |
| S04E05 - Tracking the Enemy | 08/07/2011 |
| S04E06 - Race to Save Lives | 15/07/2011 |
| S04E07 - Enemy In Their Grasps | 22/07/2011 |
| S04E08 - Battle Stations | 29/07/2011 |
| S04E09 - The Giant Enemy | 05/08/2011 |
| S04E10 - Delivering the Final Blow | 12/08/2011 |