The London chief of MI6 brings Max Easton out of retirement against his will. Meanwhile, Max's wife Anna begins to investigate her husband's past, discovering something that puts her family in grave danger.

Max is in Beirut and is unsure about who to trust after talking to Leyla, a member of the Section team in the area; in Washington, they encounter the CIA's Amanda Jones.

Amanda Jones arrives in London and brings the full force of the CIA's dissatisfaction to bear on White, who struggles to retain control.

Anna and her brother Noah find it difficult to protect her daughters in France; Alexander Said arrives in London to chat to White.

Leyla looks into the connections between Iran and the US; Anna is used as leverage by White and Khalid to put pressure on Max.

Max goes to London and finally has a meeting with White. Leyla encounters a US envoy that gives her more clues.