Right Marelli, are you sitting comfortably? Then I'll begin.....
Sarah and George broke up because it was discovered (can't remember who by) that Sarah's husband had not been killed by the Nazis as she thought, but was still alive, living with his sister in Paris. Sarah dashed off to Paris to see him, only to discover that he was ill with what appeared to be post-traumatic stress - and bullet fragments in his brain. She brought him back to Inverness to recover. If you've seen the last couple of episodes you'll know what happens next.
If I've got anything wrong, no doubt someone will correct me...
The final episode of series 3 is tomorrow. Love this programme, and was thrilled to hear that series 4 has just started filming!