Holmes helps to track down the person sending frightening messages to a man's wife.
When Hacker recognizes a visiting head of an African nation as a school friend, he does his best to offload some oil rigging gear on him.
Following Steed's arrest at headquarters, Tara investigates data leaks at a research station.
The Doctor is desperate to save the lives of Jo and everyone trapped inside the Miniscope, but is hindered by the Inter Minorans who have their own agenda.
Templar is caught in blackmail, jealousy and murder after saving the life of a British colony's prime minister; guest Edward Woodward.