The U234 is tasked with the long and difficult mission of bringing high technology Nazi weaponry, including a disassembled Me262 and ofcourse some treated plutonium, to Japan. Besides a high ranking Nazi official, a general, 2 Japanese officers are also on board.
It all sounds a bit "what if" but it more or less really happened. Already several U-boats succeeded in bringing German technology to Japan, mainly in exchange of raw materials, something the Nazis were really short of. Neither it is the so-called last U-boat as by the end of the war some +50 U-boats were still roaming the oceans, including a small number of the newly state-of-the-art U XXI type but that's another story.
This is a solid and well-made effort and on a much lower budget than "Das Boot", as this is a simple TV-movie. It is also the only movie made on this rather tricky subject because if just a part is indeed true the Nazis were seriously advanced in the making of an A-bomb.
The actors are reliable stalwarts and mainly well-known in Germany, except for the U-boat commander who was also the lead in the highly-acclaimed "The lives of others".
The Germans come off rather well in this movie, except for the die-hard Nazi ofcourse. The Brits get a bit of a bad rap and the US are presented as smart dealmakers (hinting to what happened later with the cases of plutonium).
Even if there are some historical inaccuracies this is not to be missed by any self-proclaimed WW2 buff. I gave it an 8.