In the midst of a shoot-out during a drugs smuggling investigation, Doyle meets and falls for Ann Holly, only to discover that CI5 suspect her of being closely linked to the scam herself.
| Name | Type | Role | |
|---|---|---|---|
| Brian Clemens | Writer | ||
| Patricia Hodge | Guest Star | ||
| William Russell | Guest Star | ||
| Kirstie Pooley | Guest Star | ||
| Ray Ashcroft | Guest Star | ||
| Valentine Pringle | Guest Star | ||
| Peter Burton | Guest Star | ||
| Philip Anthony | Guest Star | ||
| Peter Godfrey | Guest Star | ||
| Christopher Guard | Guest Star | ||
| Peter Holt | Guest Star | ||
| Chris Burt | Director |