What a fantastic show from start to finish, dramatic thought provoking and constantly emotional to watch. The characters each had a great part and they all worked so well together. The script was so well written and the concept a combination of hope mixed with love pain and science and ultimately the impact the events had on everyone. Great highs and lows and a show which after watching the first 2 seasons couldn't wait for season 3. Definitely in my top 3 shows I've watched and no doubt will return at some point to watch again. Can't praise this how highly enough full marks to everyone involved .....