This is a great series, well acted with an intriguing premise, but I'm tired unto death of series that do not at least have a major, COMPLETE story arc in each season. The last episode is called "How It All Ends" and that is about as misleading a title as I've ever come across, a rude joke on the viewer. This ISN'T about short attention spans or anything shallow like that: It's about reading a very fine novel only to discover you've only been sold the first quarter of it. Give this a pass until there is a complete story to watch. You will be 1) horribly frustrated and 2) forget half the details by the time the next part is available.