Focuses on Bernard Samson (Ian Holm), beginning with his search for the "mole" that threatens the Brahms Network in East Germany. Samson is sent to Berlin to bring out a Brahms agent. He is then sent to Mexico to try to persuade a KGB major (Gottfried John) to defect, using his childhood friend Verner Volkmann's wife Zena as bait. After it appears another traitor is working at London Central, Samson himself becomes one of the prime suspects.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Berlin Game: Part 1 | 1988-10-03 | 60 min |
| Season 1 | Episode 2 | Berlin Game: Part 2 | 1988-10-03 | 60 min |
| Season 1 | Episode 3 | Berlin Game: Part 3 | 1988-10-10 | 60 min |
| Season 1 | Episode 4 | Berlin Game: Part 4 | 1988-10-17 | 60 min |
| Season 1 | Episode 5 | Berlin Game: Part 5 | 1988-10-24 | 60 min |
| Season 1 | Episode 6 | Mexico Set: Part 1 | 1988-10-31 | 60 min |
| Season 1 | Episode 7 | Mexico Set: Part 2 | 1988-11-07 | 60 min |
| Season 1 | Episode 8 | Mexico Set: Part 3 | 1988-11-14 | 60 min |
| Season 1 | Episode 9 | Mexico Set: Part 4 | 1988-11-21 | 60 min |
| Season 1 | Episode 10 | Mexico Set: Part 5 | 1988-11-28 | 60 min |
| Season 1 | Episode 11 | London Match: Part 1 | 1988-12-05 | 60 min |
| Season 1 | Episode 12 | London Match: Part 2 | 1988-12-12 | 60 min |
| Season 1 | Episode 13 | London Match: Part 3 | 1988-12-19 | 60 min |
| Writing | Len Deighton | Novel |
| Writing | John Howlett | Writer |
| Production | Brian Armstrong | Producer |
| Production | Milly Preece | Associate Producer |
| Sound | Richard Harvey | Music |
| Art | Chris Truelove | Production Design |
