A part of me wanted to scream why didn't they figure out the solution in the first place?!? It didn't take a genius to figure it out..yet I realized they needed to make this last 4 hours give or take. I still loved hearing all the cast and even the newer UNIT coming together with the older UNIT members. I was a good story, but again, I felt the solution was far to easy to think of and yet they didn't til the very end.