İngiliz istihbaratının çok gizli bir birimde çalışan ajan Steed, dünyayayı robot istilasından kurtarmak için yeni bir maceraya çıkar.
John Steed and his new accomplices Purdey and Gambit find themselves facing new and deadly dangers in the bizarre world of espionage. Mixing fantasy with a darker edge, the trio face mutated giant rats, flocks of killer birds and fanatical mysterious monks. Later episodes find Steed's loyalty under question and an increasing number of assignments overseas.