Watch the official trailer for Treason to see the intense atmosphere of the series' opening episode:
Adam Lawrence is thrust into the role of acting chief of MI6 after his boss, Sir Martin Angelis, is poisoned with a non-lethal dose of whiskey. Treason s01e01
Kara admits she has been manipulating events for years to ensure Adam's career success. She demands information regarding a past operation in Baku where her team was killed. Watch the official trailer for Treason to see
Adam receives a coded message hidden in book titles from Angelis's briefcase, leading him to a meeting with Kara. Sir Martin Angelis
The CIA, led by Dede Alexander, begins secret surveillance on Adam. Dede reconnects with Maddy to use her as an asset against her own husband.