There is a second series airing now. It got delayed by Covid-19 and only began this month. I still seem to be the only person who has seen it from Chrons. The first season was on Epix in the USA, but was on Showcase in Canada. In the UK it had its premiere on StarzPlay. As I mentioned, I watched it on an aeroplane flight. I really don't understand why it doesn't have a wider distribution.
I highly recommend it. It is an alternative history and by the second season, the UK is in the grip of a fascist uprising. Paloma Faith's character is a stand out. It is the story of early life of the Wayne family butler, Alfred Pennyworth, a former British SAS soldier who is forming his own security company in this alternate London. Aspects of London in the 1950s and 1960s are combined with invented events. There are televised public executions and different versions of popular songs sung. The soundtrack is excellent too. In the first season, Pennyworth works against the Raven Society alongside American agents of the No Name League, Thomas Wayne and Martha Kane, the future parents of Bruce Wayne. The second season is set a year later.