Season 1 - Not bad, quite interesting and certainly keeps you wanting more... until episode 7 when it all goes pear-shaped.
6/10
Harry (a translator, not a spy) gets a special mission to go deep into enemy lines in Poland - he's told he'll probably die before hitting the ground, find some people and bring them back to England. Why? Apparently for no reason what so ever cause once he gets back t Blighty the government don't want to talk to him or "the people" he was to bring back. We have zero idea how he manages to cross all of Nazi occupied Europe to return to England with said people. C'mon writer(s)... that's the best you could do? The entire scenario is predicable and unnecessary.

Season 2 - oh dear.. they're letting the actors make shit up as they go along. Nothing is consistent.
Looks like they blew the entire CGI budget on season one at Dunkirk and now they're left $5, a tootsie roll and some lint to pay for the CGI on Egypt and London!
Not sure I'll watch past episode 2 to be honest...
0/10