Max Easton, a man long since withdrawn from his former life as a spy, is reluctantly drawn back into service by George White, the head of MI6's joint UK-US operation, known as 'The Section', based in London.

In Washington, they encountered Amanda Jones of the CIA. Meanwhile, Max, stationed in Beirut, found himself adrift in a sea of uncertainty, unsure of whom he could believe after his conversation with Leyla, a member of The Section team.

Amanda Jones’s arrival in London unleashed a wave of discontent from the CIA, and White found himself battling to maintain command.

In France, Anna and her brother fight to safeguard their daughters. Alexander Said, who commanded the team in Tehran, arrives in London, only to find the Section head unforgiving.

In France, Anna and her brother fight to safeguard their daughters. Alexander Said, who commanded the team in Tehran, travels to London to meet with White, but the Section head is unforgiving. Meanwhile, Max and Leyla uncover a piece of inf…

In London, Max's excavation attracts the unwanted gaze of a marksman. Meanwhile, in Washington, Jones dispatches a team to retrieve scientific data from a facility nestled in the Iranian desert.