It starts in 1327. The old king Edward III loses the civil war to his french Queen Isabella. She installs her son Edward III in as the new king. A knight Sir Thomas escapes after the murdered of the imprisoned former king to the fictional town of Kingsbridge. He seeks sanctuary as a monk. The toad Sir Roland uses his influence with the Queen to take over as Earl of Shiring. He launches a reign of terror condemning Edmund Wooler as well as the old Earl and others to death. Edmund's evil sister Petranilla (Cynthia Nixon) who poisoned Edmund's wife bribes to get Edmund freedom. Edmund's daughter Caris (Charlotte Riley) has the feel for medicine but the backwards world has little use for her except Petranilla is sending her to marry the brutal Elfric Builder. Petranilla's son is the weasel Godwyn (Rupert Evans). Roland spares the lives of the old Earl's sons taking Ralph as his squire while Merthin is given as Elfric Builder's apprentice. There are about twice as many other important characters.
It's a maze of characters. This feels like a cheaper version of shows like Game of Thrones without the dragons. It's work to stay on top of every character. Basically the theme is bad things happen to good people. The world is an ugly place and people are ugly, too. It feels very repetitive. The best ugly people has to be Cynthia Nixon and Rupert Evans. That's a crazy mother and son duo. Caris feels a little too modern. She should realize what comes with the world she lives in. She seems to be always shocked at the injustice. Overall, there are good actors in a reasonable mini-series.