Department S - Season 1 - Eps 1: Six Days
LOCATION: Aboard Astair flight Golf-Alpha-Zulu-Echo-Bravo DATE: July 17th An airplane lands at Heathrow 30 minutes early, according to all indications on board. When the plane lands the crew is met by anxious airport officials, notifying them that they are not 30 minutes early, but six days overdue. Department S has a vested interest in the flight, because Sir Curtis was aboard. As they begin investigating, people start dying.
About Department S

Title: Department S
First Air Date: 1969-09-09
Last Air Date: 1970-03-17
Status: Ended
Rating: 4.9/10 (from 12 votes)
Language: EN
Seasons: 1
Total Episodes: 28
Network: ITV1
Genres: Action & Adventure, Drama, Sci-Fi & Fantasy
Production Companies: Unknown
Synopsis
Department S is a United Kingdom spy-fi adventure series produced by ITC Entertainment. The series consists of 28 episodes which originally aired in 1969–1970. It starred Peter Wyngarde as author Jason King, Joel Fabiani as Stewart Sullivan, and Rosemary Nicols as computer expert Annabelle Hurst. The trio were agents for a fictional special department of Interpol. The head of Department S was Sir Curtis Seretse.
Cast

Peter Wyngarde
Jason KIng

Rosemary Nicols
Annabelle Hurst

Joel Fabiani
Stewart Sullivan

Dennis Alaba Peters
Sir Curtis Seretse