Episode Overview
Taverner and Tearney face off for control of MI5. River and Louisa find themselves caught in the crossfire.
Guest Stars
Saskia Reeves
Catherine Standish
Christopher Chung
Roddy Ho
Rosalind Eleazar
Louisa Guy
Aimee-Ffion Edwards
Shirley Dander
Chris Coghill
Hobbs
Sophie Okonedo
Ingrid Tearney
Chris Reilly
Nick Duffy
Kadiff Kirwan
Marcus Longridge
Ṣọpẹ́ Dìrísù
Sean Donovan
Charlie Rowe
Ben Dunn
Eliot Salt
Sarah Dunn
Sion Daniel Young
Douglas