Anticipating the arrival of his enemies to kill him, millionaire Henley Farrer sets a deadly trap for them involving an Oriental dagger and, inevitably, Steed and Tara.

Tara visits Steed in a special hospital following an injury to his leg. This is just the backdrop needed by Gerald Kafka, ex-head of Murder International, as he plans his revenge against Steed, who sent him to prison exactly seven years ago. At noon, Steed will die.

The death of agent Bernard Grant, while investigating the strange goings-on at the Alpha Academy where teenagers are being prepared for inter-planetary conquest, leads Steed and Tara into the generation war.

Steed, packing for a holiday, is knocked unconscious. When he wakes, he continues to pack but is confused when Tara arrives and tells him that he has been away for three weeks. Could it have anything to do with the mysterious man following him whom everybody else but Steed can see?

The Reverend Shelley, a wartime pal of Steed's, seeks his help when archaeologists beneath his church are murdered mysteriously. Do the killing have anything to do with small malevolent mobile metal boxes....?

The home of Steed's friends Bill and Laura Bassett is invaded by a group of ruthless criminals who implant explosives in their throats. Unfortunately, this is the weekend that Steed is coming to stay.