Andrew Manson, a young, idealistic, newly qualified Scottish doctor arrives in Wales takes his first job in a mining town, and begins to wonder at the persistent cough many of the miners have.

AGBO has been expanding its global footprint, with “Citadel” Season 2 currently in production in London under Joe Russo’s ...

What do you call a franchise that might start on a low note but then seems to get better with subsequent installments? Perhaps Citadel.