Season 1
Episode: 1x01 | Airdate: Oct 3, 1962
When Elkinson's memory seems to be failing him, it is more than his personal happiness that is at stake - the lives of his passengers could be endangered. His problem soon becomes one for the air security officers.
Episode: 1x02 | Airdate: Oct 10, 1962
In tonight's episode, the pilot of a plane bringing the president of a Middle Eastern state to London. But during the flight it is discovered that one of the tyres has been tampered with - and the plane will explode on landing. Jimmy Delaney, Garnett's American assistant accompanying the president, has to make a decision that may well cost the lives of all on board.
Episode: 1x03 | Airdate: Oct 17, 1962
On a flight from Montreal, young Mrs Clandon dies, apparently of heart failure, another passenger, the elderly Mrs Pendenny accuses Mr Clandon of murdering his wife. Obviously her charges must be investigated - but Mrs Pendenny is known by her friends, among them Mrs Trapp, to be an incorrigible liar …
Episode: 1x04 | Airdate: Oct 24, 1962
A tip-off reveals that an attempt will be made to knock out a heavyweight championship contender on an airline flying from Los Angeles - before he can even reach the ring in London.
Episode: 1x05 | Airdate: Oct 31, 1962
Episode: 1x06 | Airdate: Nov 14, 1962
Garnett, personally escorting a valuable painting to an art museum in New York, finds on arrival that he has been guarding a fake. He feels it is his duty to trace the real masterpiece as quickly as possible.
Episode: 1x07 | Airdate: Nov 21, 1962
Many children make long journeys alone in planes, but when little Peter Firth arrives from Chicago and there is no one to meet him, he becomes just another responsibility of Zero One.
Episode: 1x08 | Airdate: Nov 28, 1962
A young woman suffering from loss of memory in Chicago, and a murder the same evening in Detroit…it takes the astute mind of Garnett to suspect, and eventually prove, a connection between the two.
Episode: 1x09 | Airdate: Dec 5, 1962
Trying to sort out a marriage problem may be nothing to do with Air Security, but Garnett finds himself acting as a marriage broker when he is faced with a formidable Greek family with two unmarried sons, and a pretty girl who has come all the way from New York to marry one of them.
Episode: 1x10 | Airdate: Dec 12, 1962
Someone on board a flight from New York is being kidnapped, and Airline Security chief Alan Garnett has the difficult task of trying to find out which passenger it is.
Episode: 1x11 | Airdate: Dec 19, 1962
When Archy Vance, released from a United States prison, flies to London, he is recognized at the airport by Garnett, who puts Delaney on trial. Delaney soon finds himself deeply involved in a robbery which is as startling as it is audacious.
Episode: 1x12 | Airdate: Dec 27, 1962
Maya begins to suspect that her brother may be implicated in narcotics smuggling when he starts to spend far more than an air steward's salary. Since he got the job on her recommendation this places her in a spot.
Episode: 1x13 | Airdate: Jan 2, 1963
Episode: 1x14 | Airdate: Jan 9, 1963
Garnett and Delaney are on the track of the illegal adoption racket between Italy and America, but seem to draw a blank when it leads them a delightful children's nursery run by the benign "Uncle George".
Episode: 1x15 | Airdate: Jan 21, 1963
When Air Security is called in to investigate the death of an elderly passenger, who apparently fell through an open door on a cross-Channel flight, Alan Garnett finds himself mixing with out-of-work actors.
Episode: 1x16 | Airdate: Jan 30, 1963
Garnett and Delaney wonder what a professional assassin can be doing at the unimportant Middle East airfield of Garobo.
Episode: 1x17 | Airdate: Feb 6, 1963
When a luxury air tour of Europe proves dangerously expensive to one of the wealthy tourists, Garnett joins the party and almost becomes a blackmail victim himself.
Episode: 1x18 | Airdate: Feb 13, 1963
It is vital that pioneer airman Selkirk and his daughter Jo get the Class One licence which will make Selkirk Airways a recognized airline.
Episode: 1x19 | Airdate: Feb 20, 1963
A famous pianist from behind the Iron Curtain seeks political asylum in this country. Is he genuine, or is he perhaps a spy?
Season 2
Episode: 2x01 | Airdate: May 22, 1963
Has the music teacher really lost her hearing because of the roar of jet aircraft? Inspite of the expert's opinions, Garnett still has his doubts.
Episode: 2x02 | Airdate: May 29, 1963
Episode: 2x03 | Airdate: Jun 5, 1963
Film star Didi Druson receives a number of mysterious threats telling her she will "never see twenty-five". Although he suspects a publicity stunt, Garnett agrees to fly to Vienna with her on the eve of her twenty-fifth birthday.
Episode: 2x04 | Airdate: Jun 12, 1963
A deserted airfield - a plane with stolen gold - and in the hut the tea is still warm in the teapot. This is the mystery Delaney has to solve when he flies to the emergency landing strip in the African bush.
Episode: 2x05 | Airdate: Jul 3, 1963
A sick man, suffering from loss of memory, is identified as the wealthy Ian Denning, believed lost in the South American jungle three years before. But his wife does not recognize him - is he an imposter?
Episode: 2x06 | Airdate: Jul 10, 1963
Garnett goes to West Germany to investigate a report from an ex-Luftwaffe General that planes are landing at a disused airfield. Is the General imagining things, or is there really a mystery to be solved?
Episode: 2x07 | Airdate: Jul 17, 1963
Garnett has reason to believe a murderer has stowed away in the nosewheel housing of a freight plane bound for New York. But murderer or not, the man's life is in danger.
Episode: 2x08 | Airdate: Jul 31, 1963
An ex-bootlegger decides to tell all he knows to a Congressional Crime Committee. To stop him, his old associates kidnap his granddaughter.
Episode: 2x09 | Airdate: Aug 7, 1963
Delaney's holiday on the idyllic Caribbean island is rudely interrupted when he finds it is in the direct path of Hurricane Hilda - and there is only one small plane to fly everyone out.
Episode: 2x10 | Airdate: Aug 14, 1963
Delaney has reasons to believe the saying "Diamonds Sing Louder Than Nightingales" when Garnett sends him to Teheran to investigate the disappearance of some valuable packages of gems from the registered mail.
Episode: 2x11 | Airdate: Aug 21, 1963
Delaney, on a visit to South America, finds himself involved in the aftermath of a small revolution.
Episode: 2x12 | Airdate: Aug 28, 1963
Episode: 2x13 | Airdate: Sep 4, 1963
Garnett wonders who is double-crossing whom when he gets involved with five Middle East notables and some very valuable jewels.
Episode: 2x14 | Airdate: Sep 11, 1963
Garnett receives information that one of the eight passengers on a flight to Athens has been poisoned and will die before the plane reaches its destination.
Episode: 2x15 | Airdate: Sep 25, 1963
Season 3
Episode: 3x01 | Airdate: Sep 2, 1964
The airport payroll is stolen, and one of the notes is changed in Rome by a small-time confidence trickster. Garnett uses the lesser criminal to lead him to the real thief.
Episode: 3x02 | Airdate: Jul 12, 1965
It is panic stations at Kensington air terminal when air security officer Alan Garnett brings together the passengers from an apparently routine flight from Paris.
Episode: 3x03 | Airdate: Jul 19, 1965
The extension of the airstrip on a lovely Pacific island will mean the coming of tourists and the end of a peaceful native paradise. So when the beacon light is deliberately extinguished, sabotage is suspected.
Episode: 3x04 | Airdate: Jul 26, 1965
Episode: 3x05 | Airdate: Aug 2, 1965
Searching for missing persons can be another of Zero One's tasks; but Delaney is faced with unusual difficulties when he is given a few hours in which to find the wife of a Sheik, whom no one has seen unveiled.