Episode 6

S6 E6: Despite the efforts of MI5 and the CIA, the team discover that Iran has acquired nuclear triggers. Adam feels guilty for having been duped by his lover Ana, and Ros knows her alliance with the shadowy anti-American cabal Yalta have helped Iran. Adam and Ros go undercover as a steward and a passenger on a plane bound for Tehran in order to find the courier and prevent him from leaving the country.