Go Betty! She got even with Don, she took him back and she's so in control! I gulped when I saw Don at the stables. And although it is a bit like last season (don at the end realising he wants to be with his wife and kids), it's still very fitting in this episode. Great how they used the anxiety of that moment to help the stories along. There's no tomorrow, so why lie. Revealing everything Peggy and Pete will be in for a great story next season, maybe even taking over the lead from Don and Betty. Don and Peggy are so cute together. He noticed her haircut straight away :)
I didn't quite get the meeting with the Brits, but will probably be explained later. Great season finale!