A desk-type security agent involves the Minus Five team in a dangerous duel with jet-boats when two men are discovered tapping an undersea cable and selling information to a foreign power.
| Name | Type | Role | |
|---|---|---|---|
| Ross Napier | Writer | ||
| Willie Fennell | Guest Star | Pilgrim | |
| Owen Weingott | Guest Star | de Vuess | |
| Lex Mitchell | Guest Star | Wilcox | |
| Peter Maxwell | Director |