The series was made by 72 Films and MGM Television in association with Eon Productions for release on Amazon Prime Video on 10 November 2023. It features nine teams of two competing in a race to win £1 million each through a series of spy-themed challenges. The Controller sets the rules of the game, back at "MI6" and monitoring each team from afar as he tells them where they must go next, what challenges they must perform, and what questions they must try to answer. The 8-part second series released on 22 August 2025, but with a new format, and eight teams instead of nine participating.