Season One

1. The Key
2. View From the Villa
   (Written by Brian Clemens and Ralph Smart. Directed by Terry Bishop)
   Assigned to investigate the murder of a banker, Drake finds himself on a trail that leads him to a small seaside resort.
3. Find and Return
4. Time To Kill
   (Written by Brian Clemens and Ian Stuart Black. Directed by Ralph Smart.)
   Drake tracks down a killer but refuses to assassinate hime. Instead he decides to bring the man home - alive.
5. Under the Lake
6. The Journey Ends Halfway
7. Position of Trust
8. The Sisters
9. An Affair Of State
10. Deadline
11. Bury the Dead
12. The Girl In Pink Pyjamas
13. Sabotage
14. The Traitor
15. The Nurse
16. The Blue Veil
    (Written by Don Ingalis and Ralph Smart. Directed by Charles Frend.)
    In the sweltering heat of the Arabian desert John Drake investigates stories of slavery.
17. The Lovers
18. The Sanctuary
19. The Deputy Coyannis Story
20. The Brothers
21. Colonel Rodriguez
22. The Relaxed Informer
23. Find and Destroy
24. The Prisoner
25. The Lonely Chair
26. Dead Man Walks
27. The Contessa
28. Josetta
    (Written by Ralph Smart. Directed by Michael Truman.)
    Josetta, a blind woman, is the only person who can identify her brother's killer. John Drake must help her.
29. The Island
30. The Conspirators
31. Name, Date, and Place
32. The Leak
33. The Honeymooners
34. The Girl Who Liked GI's
35. Hired Assassin
36. The Gallows Tree
37. The Vacation
38. The Trap
39. The Actor

Season Two

1. Fish On The Hook
2. Don't Nail Him Yet
3. Fair Exchange
4. The Professionals
5. The Colonel's Daughter
6. It's Up To The Lady
7. That's Two Of Us Sorry
8. The Galloping Major
9. Yesterday's Enemies
10. Colony Three
11. A Man To Be Trusted
12. The Battle of the Cameras
13. No Marks For Servility
14. The Ubiquitous Mr. Lovegrove
15. A Date With Doris
16. Such Men Are Dangerous
17. Whatever Happened To George Foster?
18. A Room In the Basement
19. An Affair At Castelevara
20. Have A Glass of Wine
21. The Mirror's New
22. Parallel Lines Sometimes Meet
23. You Are Not In Any Trouble, Are You?
24. The Outcast
25. The Mercenaries
26. Sting In The Tail
27. A Very Dangerous Game
28. The Black Book
29. Judgement Day
30. English Lady Takes Lodgers
31. Loyalty Always Pays
32. Are You Going To Be More Permanent?

Season Three

1. To Our Best Friend
2. The Man On The Beach
3. The Man Who Wouldn't Talk
4. Say It With Flowers
5. Someone is Liable to get Hurt
6. Dangerous Secret
7. I Can Only Offer You Sherry
8. The Hunting Party
9. Two Birds With One Bullet
10. I Am Afraid You Have The Wrong Number
11. The Man With The Foot
12. The Paper Chase
13. Not So Jolly Roger

Season Four

1. Koroshi
2. Shinda Shima