Slow Horses season 3 continued the spy show's record of success, yet the series' dramatic finale also created a major problem ahead of season 4. The Apple TV+ thriller, which is based on Mick Herron's popular novels, is a potent cocktail of tense espionage, black comedy, and explosive action. So far, each installment has managed to balance these elements almost perfectly. However, thanks to Slow Horses season 3, the show is now at a crossroads where one element could supersede all the rest, damaging the show in the process.
https://screenrant.com/slow-horses-season-4-fix-3-action-problem/