Treason S01e01 May 2026

In the first episode of the Netflix limited series , Adam Lawrence's stable life and career at MI6 are thrown into chaos when a poisoning leads to his sudden promotion and the return of a ghost from his past. Episode Overview Original Air Date: December 26, 2022.

The CIA, led by Dede Alexander, begins secret surveillance on Adam. Dede reconnects with Maddy to use her as an asset against her own husband.

Kara admits she has been manipulating events for years to ensure Adam's career success. She demands information regarding a past operation in Baku where her team was killed. Treason s01e01

Adam Lawrence is thrust into the role of acting chief of MI6 after his boss, Sir Martin Angelis, is poisoned with a non-lethal dose of whiskey.

Kara, a Russian spy and Adam's former lover, reveals she orchestrated Angelis's poisoning to force Adam into power so she could use his new top-level access. Principal Cast Charlie Cox Adam Lawrence Newly appointed acting head of MI6. Olga Kurylenko Kara Yusova A former Russian SVR operative seeking intelligence. Oona Chaplin Maddy Lawrence Adam's wife and a former army officer. Ciarán Hinds Sir Martin Angelis The hospitalized former chief of MI6. Tracy Ifeachor Dede Alexander A CIA agent and Maddy's former military friend. Summary of Key Events In the first episode of the Netflix limited

Adam increases security for his family, which causes tension with his teenage daughter, Ella, who feels suffocated by her new life.

Sir Martin Angelis is hospitalized after drinking poisoned whiskey at a club. Adam Lawrence, his deputy, is immediately elevated to lead the agency. Dede reconnects with Maddy to use her as

Watch the official trailer for Treason to see the intense atmosphere of the series' opening episode: