Dec 26, 2022 · 45m
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.
Treason
Question everything. Suspect everyone.
An MI6 deputy's bright future takes a sharp turn after a reunion with a Russian spy forces him to question his entire life.
Created by: Matt Charman
Season 1 Episodes
Browse every episode and jump into details.
Dec 26, 2022 · 43m
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.
Dec 26, 2022 · 44m
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.
Dec 26, 2022 · 38m
Adam flees London with the children after MI6 revokes his clearance. Before long, their hiding place is discovered — and blood is spilled.
Dec 26, 2022 · 42m
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.
Season 1 FAQ
Quick answers about this season's release timeline and episode lineup.
When did Treason Season 1 premiere?
Treason Season 1 premiered on December 26, 2022.
How many episodes are in Treason Season 1?
Treason Season 1 has 5 episodes.
What is the first episode of Treason Season 1?
The season opens with Season 1 Episode 1, "Episode 1". It aired on December 26, 2022.
Go to Season 1 Episode 1