Ricki Tarr becomes unstable and George Smiley must examine his past to find answers. He must examine his personal life as well as his past with the Circus, especially in regard to Control. He also reflects on his meeting with Karla, 'The Sandman'.
| Name | Type | Role | |
|---|---|---|---|
| Arthur Hopcraft | Writer | ||
| Alec Sabin | Guest Star | ||
| Warren Clarke | Guest Star | ||
| Majorie Hogan | Guest Star | ||
| Joe Praml | Guest Star | ||
| Patrick Stewart | Guest Star | ||
| John Irvin | Director | ||
| John le Carré | Director |