The new Hunter cannot decide if Callan is to return to the Section or not.

When Cross kills an innocent bystander it's up to Callan to cover for him, but even he cannot decide if it was an accident or murder.

An exchange of captured agents with the Soviets goes sour.

Hunter's secretary, Liz, is out for someone's blood.

Callan and Cross are assigned to protect a woman whom Callan becomes involved with.

Callan helps a former agent out of a blackmailing business.

Callan is assigned to disrupt a romance between a government worker and a suspected spy. Reluctantly he delves into his bag of dirty tricks.

Callan and Cross must break a Russian spy out of prison, where he has voluntarily surrendered himself to, and kill him.

A parlamental candidate recieves a death threat.

Callan is dead. Or so the KGB would have you think.

Lonely is used as bait to retrieve Callan from the KGB.

Callan has become the new Hunter. And his first job is to retrieve a list of British undercover agents.

Callan orders Cross to terrorise an innocent Russian family for political reasons.

Callan looses his position as Hunter when he goes after the assassin who killed Cross.

The old Hunter returns and Callan tries to get away.

Callan tries to quit the Section when a girl he is seeing takes a dislike to his job.

Lonely becomes the unlucky witness to a mob hit.

Callan tracks down Richmond who is trying to leave Britain.

Callan and Lonley break into a courier's house to find out how he's operating.

Callan substitutes himself for an assassin in order to prevent an assassination.

Callan debriefs a top enemy defector.

Richmond, a top enemy defector, reveals his true purpose.