Sezon 4
Bölümler
1 Battle Cry 3 Haz 2011 2 No Escape 10 Haz 2011 3 Ghosts in the Machine 17 Haz 2011 4 The Devil's Icebox 24 Haz 2011 5 Tracking the Enemy 8 Tem 2011 6 Race to Save Lives 15 Tem 2011 7 Enemy In Their Grasps 22 Tem 2011 8 Battle Stations 29 Tem 2011 9 The Giant Enemy 5 Ağu 2011 10 Delivering the Final Blow 12 Ağu 2011