I belive they delayed it by a couple of months because there was a hostage situation which was to close to the story line.
The one you are on about is the one where the CO (dempsey) gets kidnapped while protecting someone in Georgia. At the end Henno shoots The new Captain (Cpt. Ian Macalwain played by Richard Armitage) for sh*ging Petes (the ginger scot)'s wife. Can you see I have the boxset in front of me
I just hope Alex Reid (Cpt. Caroline Walshe) is still in cause she was gorgeous, i'd prefer Alex over my aviator ANY day
HTH