Solo and Illya board the Adriatic Express train on New Year's Eve to intercept Madame Nemirovitch, a THRUSH agent who is carrying a chemical that is capable of stopping the reproductive process. Eva, a young girl who delivers a message to Madame Nemirovitch as the train leaves, is caught on board. Throughout the evening, the THRUSH agent and Solo and Illya engage in a battle of wits as the train speeds along its route.
| Name | Type | Role | |
|---|---|---|---|
| Robert Hill | Writer | ||
| Frank Kreig | Guest Star | ||
| Jessie Royce Landis | Guest Star | ||
| Pamela Rodgers | Guest Star | ||
| Jennifer Billingsley | Guest Star | ||
| Jane Dulo | Guest Star | ||
| Norbert Schiller | Guest Star | ||
| Sol Gorss | Guest Star | ||
| Juliet Mills | Guest Star | ||
| Henry Rowland | Guest Star | ||
| Chuck Hicks | Guest Star | ||
| Sig Ruman | Guest Star | ||
| Seymour Robbie | Director |