The acclaimed and wickedly subversive British political thriller Slow Horses has returned for its third season on Apple TV+. Based on the Slough House novel series by Mick Herron, the third season adapts Herron's novel Real Tigers as it places the disgraced intelligence operative protagonists on a new mission to defend the United Kingdom. A little harder hitting than preceding seasons, without compromising its pitch-black sense of humor, Slow Horses quietly stands as one of Apple TV+'s most consistently expertly crafted original series.