The characters are quite good and this series has potential. I hope they will grow in the next season and that there is a next season more importantly. We are BritBox devotees and this one could well be a keeper.

Loved the original series and was disappointed when it was canceled after 2 Seasons. Now the code crackers who served covertly in England come to San Francisco to solve the murder of a co-worker who died during the war. The women are dismissed by the all male police departments. Little do they know these are women with brilliant minds who won't rest till they find the killer.

I was expecting so much more from the latest series, having enjoyed the previous two. This time, only Millie (Rachael Stirling) and Jean (Julie Graham) from the original cast appear, which is a shame in itself. Now they zoom off to the US on the track of a killer who they believe struck back in the 40's. How they afford to do this is a mystery in itself! Meeting a wartime American colleague (Iris - Crystal Balint) and her friend Hailey (Chanelle Peloso) - who must have been all of 15 during the War - they track down the locations of the next murders and body drops by some means not explained - apparently, they just look at a map and point.... This story line is very weak, glossing over the solving of the riddle and leaving the viewer mystified. At the end, Jean says she'll return to the UK, but Millie is staying in California, so that will leave only the one Bletchley woman for the remainder of the series. I doubt that it will improve, but I live in hope!

I say, 'give it time to develop'. I thought the sense of period was excellent, with only a couple of 21st century clichés creeping in, but to be honest, the script writers are probably far too young to realise that 'their language' is not what was used over half a century ago. We have to suspend disbelief a little when we watch any TV fiction and this isn't that far off in its portrayal of the 1950's.I thought the standard of acting was extraordinarily high and feel that this has the potential to develop as well as, say, Endeavour as a series as the cast gradually beds in . . . and who's to say that old cast members won't reappear as the episodes unfold? Sometimes, slow burners turn into the fiercest blazes.