German saboteurs are attacking wartime installations. Erskine is sent to track down the saboteurs supply lines in the Portuguese fishing community, while Haber is interned in a prison with some captured Germans to learn their plans.
| Name | Type | Role | |
|---|---|---|---|
| Ted Roberts | Writer | ||
| Victoria Anoux | Guest Star | ||
| Walter Sullivan | Guest Star | ||
| Charles Thorn | Guest Star | ||
| Gordon Piper | Guest Star | ||
| Alister Smart | Guest Star | ||
| Bill Hunter | Guest Star | ||
| Keith Lee | Guest Star | ||
| Ron Way | Director |