Ian is knighted by King Richard and sent to rescue Barbara. The King's Chamberlain becomes suspicious of the Doctor and Vicki. Barbara makes a bid to escape from her kidnappers. This episode is missing from the archives.
| Name | Type | Role | |
|---|---|---|---|
| David Whitaker | Writer | ||
| Bruce Wightman | Guest Star | ||
| Edward Haroutuniant | Guest Star | ||
| Zohra Segal | Guest Star | ||
| Robert Lankesheer | Guest Star | ||
| Gábor Baraker | Guest Star | ||
| Reg Pritchard | Guest Star | ||
| Rikki Patterson | Guest Star | ||
| Chris Konyils | Guest Star | ||
| Roger Avon | Guest Star | ||
| Henry Garcia | Guest Star | ||
| Raymond Novak | Guest Star | ||
| John Flint | Guest Star | ||
| Douglas Camfield | Director |