The series expects its audience to just come into its halls with a prior knowledge of Tolkien lore but in that expectation offsets its responsibilities onto said audience.
Thanks to a talented cast and a pointed script, & Sons makes a good, but not quite remarkable, addition to the pantheon of family dramas (with a twist).
An interview with Gary Oldman about diving into his dishevelled spy Jackson Lamb on season six of Slow Horses and learning the character as the series evolves.