Note: This story contains spoilers from “Slow Horses” Season 4, Episode 1.
When we last saw Catherine Standish (Saskia Reeves) in Season 3 of “Slow Horses,” she had just walked out on her boss Jackson Lamb (Gary Oldman) and quit MI5 after several years of unappreciated service.
The Season 4 premiere of the Apple TV+ spy series revealed that Jackson never accepted her resignation and she’s still technically an MI5 employee, which naturally means she is drawn into Slough House’s latest case, whether she likes it or not.
Reeves spoke with TheWrap about Catherine and Jackson’s rocky relationship — and about that giant misdirect that may have convinced viewers that one of the “Slow Horses” team members was dead.