Season 1

On a covert mission behind the Iron Curtain, Adams journeys to Warsaw in an effort to recover a diary containing crucial information vital to Western governments. Along the way, he receives assistance from a group of impoverished Polish men and women who share his train ride.

On a covert mission beyond the Iron Curtain, Adams embarks on a journey to Warsaw to recover a diary holding critical information for Western governments. Along the way, he is aided by a group of impoverished Polish men and women who accompany him on the train.

Communist operatives devise a plot to abduct an Austrian soil expert during her visit to New York City, intending to substitute her with an impostor.

After the assassination of Austria's anti-communist leader, Adams steps in to offer protection to their successor.

Adams is brought in to handle the situation when a prominent American economist is kidnapped by communist agents during a visit to Paris. A charming female reporter steps forward, claiming to know the economist's location and offering her assistance.

American businessman Bart Adams outwits a communist gang.

Adams travels to Athens in an effort to uncover a communist cell active within the city. He discovers that one of the cell's members is hospitalized and may be willing to share vital information before passing away.

Adams infiltrates East Berlin on a daring mission to rescue a female spy holding a crucial piece of microfilm, racing against time to outmaneuver communist agents intent on capturing her.

Adams sets out on a mission to save the Polish-born daughter-in-law of an American general, navigating the dangerous world of Communist agents operating beyond the Iron Curtain.

Adams looks into the case of a former Soviet secret police officer seeking to defect to the British authorities in their sector of Berlin.

Bart Adams uncovers a lead pointing to the location of a Czech patriot, a portrait artist by profession, who is in hiding in Prague. Disguised and working beneath the radar, he sets out on a high-stakes mission to help her escape across the Iron Curtain before the Communist regime can apprehend and condemn her for treason.

During a visit to Bulgaria, the sister of an American journalist, labeled a traitor back in the United States, attempts to persuade Adams that her brother has been wrongfully accused. Determined to uncover the truth, the Hunter takes it upon himself to investigate and identify the actual culprit.

Adams embarks on a mission to identify a courier working for a communist spy within the group of passengers on a Trans-Atlantic flight. Tensions escalate further when a murder occurs aboard the plane, raising the stakes dramatically.