Episode 1-01, first aired 03/09/1969
"When an aircraft goes missing for six days and the crew members have no recollection of events, Department S investigates."
The Trojan Tanker|
Episode 1-02, first aired 03/16/1969
"A crashed tanker has had a room built inside, which contains an unconscious girl. She disappears before help arrives."
A Cellar Full of Silence|
Episode 1-03, first aired 03/23/1969
"Department S is called in after four dead men are found in a cellar, wearing fancy dress."
The Pied Piper of Hambledown|
Episode 1-04, first aired 03/30/1969
"When an entire village disappears overnight except for one girl, Department S is called in."
One of Our Aircraft Is Empty|
Episode 1-05, first aired 04/06/1969
"An airliner lands at Heathrow but the crew and passengers are missing. (Made back-to-back with "Six Days")."
The Man in the Elegant Room|
Episode 1-06, first aired 04/13/1969
"When a dead girl and a demented man are found in a room constructed inside a disused factory, Department S investigates."
Episode 1-07, first aired 04/20/1969
"When a tournament golfer is found dead on a nearby beach, Sullivan investigates."
A Ticket to Nowhere|
Episode 1-08, first aired 04/27/1969
"A disappearing scientist and the death of a financier are linked, but Jason and Stewart keep forgetting about the case, to the despair of Annabelle."
Episode 1-09, first aired 09/17/1969
"A chef and food critic is found unconscious in the Mexican desert and cannot recall the last three days. Is there a connection to the American space programme?"
Double Death of Charlie Crippen|
Episode 1-10, first aired 09/24/1969
"An assassination attempt leaves only a dummy as the victim. Department S has to discover who the real target is."
Who Plays the Dummy|
Episode 1-11, first aired 10/01/1969
"When a car crashes and the sole occupant is a dummy in the driving seat, Department S follows the trail to an imminent attack on NATO senior officers."
The Treasure of the Costa del Sol|
Episode 1-12, first aired 10/08/1969
"Two dead fisherman, and a haul of plastic fish containing $100,000, lead to a painter and engraver."
The Man Who Got a New Face|
Episode 1-13, first aired 10/15/1969
"Department S investigates when a man is found dead with a clown's mask glued to his face, and the trail leads to a vicious vendetta."
Les Fleurs du Mal|
Episode 1-14, first aired 10/22/1969
"Three plastic flowers contain a coded message that will lead to the proceeds of a bank robbery, but there are interested parties ready to kill for the flowers."
The Shift That Never Was|
Episode 1-15, first aired 10/25/1969
"With one exception, every member of staff of a chemical factory takes a day off. The one man who went to work is murdered. The trail leads to a beauty parlour and a nuclear power station."
The Man from X|
Episode 1-16, first aired 11/05/1969
"A man clad in a spacesuit staggers in a London street, unable to remove the jammed helmet, he suffocates. Department S investigates, the only clue is the man has slight radiation burns and had been in a vacuum."
Dead Men Die Twice|
Episode 1-17, first aired 11/12/1969
"Department S finds that a 'dead man' can die twice when a man is murdered twice three years after his double had been murdered."
The Perfect Operation|
Episode 1-18, first aired 11/26/1969
"A surgeon performing a delicate brain operation on a senior British civil servant is forcibly removed, another surgeon enters and completes the operation, saving the man's life. Department S investigates the only surgeon capable of doing the operation, but he is Russian and too old."
The Duplicated Man|
Episode 1-19, first aired 12/03/1969
"A double agent is killed, but is he really dead after he has spent ten years cultivating a second identity to escape from his masters? Department S investigates, closely followed by enemy agents."
The Mysterious Man in the Flying Machine|
Episode 1-20, first aired 12/10/1969
"A man is found murdered in a mock-up aircraft in a warehouse. The team wonder why anybody should go to so much trouble. A message left scrawled on their car is the only clue."
Death on Reflection|
Episode 1-21, first aired 12/17/1969
"Sir Curtis Seretse, head of Department S, is astonished to see a mirror sell at auction for four times its value, when the buyer is murdered, he asks the team to investigate."
Last Train to Redbridge|
Episode 1-22, first aired 01/14/1970
"Multiple murders on a tube train lead Department S to criminal speculators attempting to tap the hot line between the US President and the UK Prime Minister."
A Small War of Nerves|
Episode 1-23, first aired 01/21/1970
"A fanatical scientist who has developed a deadly nerve gas threatens to wipe out London unless governments take notice and agree to live in peace."
The Bones of Byrom Blain|
Episode 1-24, first aired 01/28/1970
"A chauffeur arrives at his destination only to discover his passenger has disappeared, leaving only his skeleton behind. Department S investigates and discovers the chauffeur's skeleton, the same fate awaits Sir Curtis Seretse and Jason King."
pencer Bodily is 60 Years Old|
Episode 1-25, first aired 02/11/1970
"Spencer Bodily is dead, he looks 20 but must be at least 60, and there is no record he ever existed. The body disappears, and Department S suspects there could be more cases of 'eternal youth'."
The Ghost of Mary Burnham|
Episode 1-26, first aired 02/18/1970
"John Burnham is tormented by the ghost of his wife shortly after she is shot and killed. He is a brilliant economist and someone is trying to unbalance him to prevent him taking an important job. Department S has to find out why before he is driven insane."
A Fish Out of Water|
Episode 1-27, first aired 02/25/1970
"When an Interpol agent is found dead, Jason King is sent to take over his mission to crack an international drug ring. Jason realises he has been identified and his life is in danger. Stewart and Annabelle are sent to back him up."
The Soup of the Day|
Episode 1-28, first aired 03/04/1970
"When a crate of soup is stolen from a bonded warehouse, Department S suspects smuggling, but when the team locates the stolen soup cans, all are intact and contain only soup. Is it a case of double-cross?"