This is the 4th series of DAS BOOT and may well be my favourite. The Italian setting (filmed in Malta) gives good contrast to the glaucous northern Europe of the Nazis, the blue-grey aura of black swastikas on red banners everywhere.
My one criticism of previous series is the inevitable long time set on subs and the various characters, which is a lot to take in and can cause confusion - SO I may well watch them all again.
Make no mistake, this is serious quality drama which hooked me more than anything I have watched on terrestrial UK TV lately, where drama is all so woke preachy and tick-box. This is clever storytelling, not preaching, though with an obvious message about war and extremism. Lots of loyalties shifting like sands too.
The acting us great and the main characters well-developed.
5 stars