MGM+ to premiere spy series Secret Service starring Gemma Arterton

MGM+ has announced the premiere of its new British espionage series, ‘Secret Service’, scheduled for November 22, 2026. The series stars Gemma Arterton as Kate Henderson, an experienced MI6 agent.

The plot follows Henderson as she uncovers a Russian conspiracy in Istanbul involving a high-ranking influence agent within the British government. The discovery occurs during a period of political instability following the announced resignation of the Prime Minister. As Henderson investigates, she faces a conflict between her professional duties and personal loyalties, as the suspected agent may be close to her, including her husband or her close friend, the British Chancellor.

The ensemble cast includes Rafe Spall, Mark Stanley, Aoife Hinds, and Avi Nash.