We realise the initial premiss of the show immediately - someone goes overboard. The action then switches to the personal point of view of the main characters of how the accident happened and the effects it had on them and their relationships. Of necessity, some of the scenes are repeated but it's from a different person's viewpoint and it's really rather clever.
There was a bit too much usage of people stumbling on or overhearing other characters divulging either family secrets or information about the accident. I didn't find the initial introduction of the kids to drugs convincing either nor the person who turned them on. After all, he wasn't just taking a risk with the drugs, he could have very easily have been dispatched to the klink with evidence still held by two of the main characters had they found out for sure.
I was fascinated by the setting on the island, Germans and Danes getting on with each other and speaking each others' languages. But it was revealed to be skin deep and ugly prejudices surfaced when the final report was challenged by Kjell's grandparents; overtones of the German occupation and resentment came into play.
Unfortunately the final couple of episodes weakened the whole structure. I do not believe how the idealistic people smugglers financed their endeavours. I don't believe that they would not have been caught in one way or another over fifteen years. Those episodes were a cop out although I had expected something of the sort as there were eight main characters and eight episodes, so one each.
Nonetheless, I watched it all and put my misgivings aside to enjoy the series. I recommend it as a respite from cop shows, even Danish ones.