In a word: Boring!
I will say I did enjoy Kat Graham and Alexander Ludwig in the lead roles, I thought they worked well together. They are, unfortunately, the only plus points I have for 'Operation Christmas Drop'.
It really is just so dull. The way they set the plot up is weak, with it instantly becoming obvious what is on the way. You are just waiting for Graham's character to switch, which she actually does quite early on. So the rest of the film, until the 'big moment', is filled with nothingness... just pointless filler.
The real life story that inspired this is quite cool, but this doesn't do it any justice sadly. It isn't even anything negative, at least to me, but there's little to nothing positive about it either.