Treason follows Adam Lawrence, trained and groomed by MI6, whose career seems set. But when the past catches up with him in the form of Kara, a Russian spy with whom he shares a complicated past, he is forced to question everything and everyone in his life. A triangular relationship forms between Kara, Adam and his wife, Maddy; three people who are trying to expose each other's secrets, navigate political and diplomatic relationships, whilst hanging onto their personal lives, and those they love most.
Season One of Treason premiered on December 26th, 2022. This season contains Five episodes.
S1E1 - Episode 1
2022-12-26
Adam Lawrence immediately rises to the top of MI6 after his boss is poisoned. But a surprise meeting forces him to question his whole career.
S1E2 - Episode 2
2022-12-26
With his family in fresh danger, Adam attempts to cut ties to his secret asset. Meanwhile, Maddy and Kara form covert alliances of their own.
S1E3 - Episode 3
2022-12-26
In a bid to avoid treason charges, both Adam and Maddy go after Kara. But overheard conversations lead to big doubts about who they can really trust.
S1E4 - Episode 4
2022-12-26
Adam flees London with the children after MI6 revokes his clearance. Before long, their hiding place is discovered — and blood is spilled.
S1E5 - Episode 5
2022-12-26
More shocking secrets come to light as an unlikely team works to expose the truth, with lives and the very future of government hanging in the balance.
Charlie Cox
as Adam Lawrence
Olga Kurylenko
as Kara Yusova
Oona Chaplin
as Maddy De Costa
Ciarán Hinds
as Sir Martin Angelis