Here's a very nice article and book review about the man who planned the first raid on the Norweigien heavy water plant.
The Heavy Water War and the WWII Hero You Don't Know
The account of the actual commandos who hit the plant on skis is more exciting than any Bond thriller. I'll have to search around for articles recounting the first (Gunnerside) commando raid specifically.
This article comports with my understanding of Getmany's progress toward nukes. They may have been close on the theory end of things but they were light years away from production. They were light years ahead of the West in rocket technology though.