Starring Derren Nesbitt, Fulton McKay and Morris Perry. In the last of the present series, Britain's top code and cypher-breaker is an expert chess player. When he has to mingle with Communist players in a tournament, Inman goes along to keep an eye on him. Moxon, meanwhile, is playing a far more dangerous game. The pawns being Jordan and a former girl friend.

An attractive Russian ballerina from a visiting ballet company goes missing.

Inman sends Jordan to investigate the leader of a pro- germ-warfare group.

When a Czech au-pair goes missing, the team learn her father is one of the most powerful men in the country.

Military security intercept a letter written to a serviceman which contains references to secret information.

The team believe Karl Peters will attempt to incite London dockworkers into taking industrial action.

A scientist heading to a top secret research establishment poses a risk for Inman and his team.

Inman meets the CIAs new man in London, Jordan meets an old friend from Moscow.

An accusation of theft against a highly respected Greek historian sets the Special Branch team a problem.

What appears to be a straightforward case, protecting the daughter of a foreign VIP who has entered a beauty pageant in London, turns into a nightmare for Inspector Jordan.

An ex-colonial policeman is pressured to return to Kenya to testify at the trial of a warlord.

Jordan flies to Frankfurt to escort a British subject home.

Jordan finds himself in Wormwood Scrubs.