Technological advances have escalated Cold War tensions to an all-time high, and undercover KGB operatives Elizabeth and Philip Jennings face the growing threat of discovery. As their assignments grow more deadly, their family is in more danger, and their loyalties are tested like never before.

"A year after the explosive events of last season, England finds itself embroiled in a devastating civil war, with the powerful, neo-fascist Raven Union, led by Lord Harwood (Jason Flemyng) threatening to control the entire country. North London remains one of the few resistance holdouts remaining. It's here in the West End Neutral Zone, that we find Alfred Pennyworth (Jack Bannon). After years in the British Army, his training with the SAS has taught...

The acclaimed detective series returns with three new mysteries set in the uncertain days at the beginning of the Cold War.

At the height of WWII, brave British women risk their lives as secret agents in occupied France.

The Cold War heats up when a KGB defector exposes Operation Glass, a potentially devastating Soviet plot to activate sleeper agents across the UK. The charismatic but paranoid head of MI-5, known simply as 'Daddy', assembles a secret committee of spies and intelligence officers to investigate. They're the only colleagues he trusts in a world of double agents and lies, but has he chosen well?

Technological advances have escalated Cold War tensions to an all-time high, and undercover KGB operatives Elizabeth and Philip Jennings face the growing threat of discovery. As their assignments grow more deadly, their family is in more danger, and their loyalties are tested like never before.