Feb 8, 2026 · 47m
The first episode of a thrilling espionage series. When a meeting with an informant turns fatal, MI5 agent John Hughes believes that there is a deadly conspiracy behind it.
Betrayal
John Hughes joined MI5 during the war on terror and was at the forefront of averting the biggest terrorist plots on UK soil. Now in his mid 40s and married with two children he’s struggling to adapt to the new MI5, where threats to national security have changed and he’s forced to adapt to the values of a progressive work environment.
Season 1 Episodes
Browse every episode and jump into details.
Feb 9, 2026 · 48m
Thrilling espionage series. John is convinced that he has exposed an assassination plot - and about to discover that his wife is getting attention from a colleague.
Feb 15, 2026 · 48m
As John tries to track down an elusive Iranian general, he becomes increasingly convinced that he is being deceived at work and at home.
Feb 16, 2026 · 47m
John must escape captivity to intercept the attack, but those who want it to proceed will stop at nothing.
Season 1 FAQ
Quick answers about this season's release timeline and episode lineup.
When did Betrayal Season 1 premiere?
Betrayal Season 1 premiered on February 8, 2026.
How many episodes are in Betrayal Season 1?
Betrayal Season 1 has 4 episodes.
What is the first episode of Betrayal Season 1?
The season opens with Season 1 Episode 1, "Piles". It aired on February 8, 2026.
Go to Season 1 Episode 1