1x1 - The Assassin

September 15, 1974

Informed by Buxton that the 'other side' are plotting to kill the Commander, Briggs goes undercover as a restaurant waiter and ends up saving the Commander's life - but nor before he lands himself, and gun, in the soup.

1x2 - The Defector

September 22, 1974

Having tracked to a heliport two Russian agents suspected of organising escape routes to Moscow for agents on the run, Briggs accidentally switches on the airport's Tannoy system - and broadcast his plans to capture them.

1x3 - The Leak

September 29, 1974

While attending a cocktail party with his wife, Briggs saves the day handing a roll of 'classified' film to an enemy contact - the man believes he's getting film of a secret missile base but Briggs accidentally hands over his holiday film.

1x4 - The Escape Route

October 6, 1974

Assigned to discover who is behind an escape route, Briggs find himself swimming in muddy water but nevertheless stumbles across the ringleader - and accidently rounds up the gang single-handed.

1x5 - The Abduction

October 25, 1974

When the Commander is abducted and Briggs is left to engineer his escape, the agent does so, but not until he has bumbled his way through another mission and driven the abductor's getaway car - and the Commander - to safety.

1x6 - The Exchange

November 1, 1974

Busy redecorating his home, Briggs stops his DIY activities to oversee an exchange of spies between SIS and the East Germans and finds himself face to face with enemy agents - with only a paintbrush in his gun holster.

1x7 - The Courier

November 8, 1974

Suspecting that a member of the International Symphony Orchestra, a pianist, has devised a clever scheme to smuggle secret information to the KGB, Briggs thwarts the man's plans - but not before he finds himself singing in a radio broadcast.

1x8 - The Traitor

November 15, 1974

Suspecting that Edwards, a clerk in the Documents Section, is responsible for betraying the department's agents to the enemy, Briggs exposed a network of traitors - by mistakenly arresting two 'innocent' men.

1x9 - The KGB

November 22, 1974

Assigned to organise the defection of a top Russian nuclear scientist, Briggs, heavily disguised, collects the woman in his car. Taking a 'short cut' to evade his pursuers, he gets lost in a multi-storey car park.

1x10 - The Drawing

November 29, 1974

Informed that someone at the Naval Section is selling vital missile drawings to the enemy, Briggs enters into a game of roulette with the suspect and discovers that the secret information has been incorporated into the design of a £5 note - one which Briggs hands over to the croupier as a tip.

1x11 - The President

December 6, 1974

When assassination attempts are made on the life of a visiting president, our hero is put in charge of security. A mistake: before the day is through Briggs will pursue the enemy in a bread van - and leave three security cars crippled in a ditch.

1x12 - The Appointment

December 13, 1974

Given the task of training new recruit Maxwell. Briggs teaches the man the tricks of self-defence and marksmanship - but forgets to load Maxwell's gun. A fortunate move - Maxwell is a traitor and Briggs finds himself looking down the wrong end of the barrel.

1x13 - The Contact

December 20, 1974

Assigned to observe a meeting between an SIS man and his enemy-contact and take photographic evidence, Briggs causes chaos at Victoria Station by hiding on a train - and is carried off non-stop to Brighton.

David Jason

Edgar Briggs

Mark Eden

Spencer

Barbara Angell

Jennifer Briggs