Seasons & Episodes
EP 1
Part 1
British intelligence must convince Russian scientist Wilhelm Guttmann to come to the United Kingdom, but with his son in
EP 2
Part 2
Donoghue goes undercover in Berlin to make contact with Guttmann and persuade him to defect, navigating tense East Germa
EP 3
Part 3
Abandoned in East Germany as the operation unravels, Donoghue charges on with a desperate plan to smuggle Guttmann and h
