CI5 discover that a possible terrorist attack is being planned, and the only clue they have in solving it is a German girl who is found collapsed in a church and suffering from amnesia.
| Name | Type | Role | |
|---|---|---|---|
| Brian Clemens | Writer | ||
| Derek Ensor | Guest Star | ||
| Timothy Stark | Guest Star | ||
| Cyril Conway | Guest Star | ||
| Paul Gale | Guest Star | ||
| Amanda Leigh | Guest Star | ||
| Ben Cross | Guest Star | ||
| Linda Hayden | Guest Star | ||
| Gareth Armstrong | Guest Star | ||
| Sylvester Morand | Guest Star | ||
| Louis Mahoney | Guest Star | ||
| John Cording | Guest Star | ||
| Fionn O'Farrell | Guest Star | ||
| Julia Blalock | Guest Star | ||
| Jill Martin | Guest Star | ||
| Kevin Quarmby | Guest Star | ||
| John Arnatt | Guest Star | ||
| William Brayne | Director |