Secret Service

Upcoming / 7:00pm ITV1 48 min.
Following senior MI6 officer Kate Henderson as she makes the shocking discovery that a British politician in contention to be the next Prime Minister could in fact be a Russian asset.

Season 1

5 Episodes

Episode 5 1x05
 TBA
Episode 4 1x04
 TBA
Episode 3 1x03
 TBA
Episode 2 1x02
Kate suspects that her agent is in danger and, defying orders, prepares to rescue her. Later, she uncovers the Prime Ministerial candidates' murky Russian connections.
Apr 28 2026
Episode 1 1x01
The first episode of an action-packed and thrilling adaptation of ITV News journalist Tom Bradby's 2019 novel. An MI6 agent learns that there is a Russian asset in the UK Cabinet.
Apr 27 2026