Lamb and Katinsky go head-to-head. Ho finds himself trapped on a train with a Russian assassin.

Lamb orders his Slow Horses to walk into traps. River believes something alarming is heading toward London.

Lamb liaises with a Russian defector who may hold a clue to sleeper agents. River is on the trail of a ruthless assassin.

Jackson Lamb is on high alert after a former spy is found dead. Min and Louisa are tempted by an offer from outside Slough House.

Follows a team of British intelligence agents who serve as a dumping ground department of MI5 due to their career-ending mistakes

Season 4 of The Crown premiered on November 15, 2020. As the 1970s are drawing to a close, Queen Elizabeth and her family find themselves preoccupied with safeguarding the line…