This was an adventurous episode. First I loved that it was not so black and white. What we first took for granted was later so much changed and it looked like a big ugly trap then and some, like Carter, first bought it quite deeply.
Also, there was much excitement - that kind of run around on the forest and hunt missing aliens. Quite lovely way of spending free time before it gets dark (I still wonder. It was said it will be dark on 5 hours.. did this all took less or five hours or?)
Anyway, quite good episode and enjoyable to watch.