River and Sid join forces. A misfired gun has dire consequences.

Slough House is the unlikely venue for a secret romance, but events take a dark turn when a dangerous encounter becomes deadly.

The Slow Horses must disappear to avoid capture by MI5. Lamb and River head to The Park to outwit Taverner.

River Cartwright is ousted from MI5 and finds himself in a place worse than purgatory: Slough House, dumping ground for failed spies.

Henry prepares for war with France but receives cautious counsel from the powerful Cardinal Wolsey, who urges a treaty; the king learns that his queen’s lady-in-waiting Elizabeth Blount is pregnant…

Henry contemplates an alliance with Holy Roman Emperor Charles V of Spain despite his “Field of Cloth of Gold” ceremony celebrating allegiance to France, and executes a rival; Elizabeth gives…