Netflix has debuted the trailer for the upcoming limited series starring Charlie Cox, ‘Treason.’

Trained and groomed by MI6, Adam Lawrence’s career seems set. But when the past catches up with him in the form of Kara, a Russian spy with whom he shares a complicated past, he is forced to question everything and everyone in his life. A triangular relationship forms between Kara, Adam and his wife, Maddy; three people who are trying to expose each other’s secrets, and navigate political and diplomatic relationships, whilst hanging onto their personal lives, and those they love most.

Directed by Louise Hooper and Sarah O’Gorman, the 5 episode-limited series stars Charlie Cox, Olga Kurylenko, Oona Chaplin, Ciarán Hind,  Tracy Ifeachor.

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The series premieres on the streamer on December 26th.