When twenty five million dollars in forged currency floods the European capitals, John Drake is assigned by U.S. Intelligence to trace the source. The trail leads to an ex-Nazi General staying at a lake-side hotel in the mountains. Drake faces death before he can solve the case and uncover the secret of the lake.
| Name | Type | Role | |
|---|---|---|---|
| Jack Whittingham | Writer | ||
| Christopher Rhodes | Guest Star | ||
| Moira Redmond | Guest Star | ||
| Lionel Murton | Guest Star | ||
| Walter Gotell | Guest Star | ||
| Roger Delgado | Guest Star | ||
| Jack Cunningham | Guest Star | ||
| Norman Florence | Guest Star | ||
| Reginald Jessup | Guest Star | ||
| Andrew Downie | Guest Star | ||
| Hermione Baddeley | Guest Star | ||
| Seth Holt | Director |