When a construction foreman runs into trouble building a tunnel under a Cuban harbor, he hires Tim and Toubo to find who is sabotaging his work.
| Name | Type | Role | |
|---|---|---|---|
| Fenton Earnshaw | Writer | ||
| Robert Bice | Guest Star | ||
| Sol Gorss | Guest Star | ||
| Harry Lauter | Guest Star | ||
| Don Casino | Guest Star | ||
| Alex Montoya | Guest Star | ||
| Robert Anderson | Guest Star | ||
| Anna Navarro | Guest Star | ||
| D. Ross Lederman | Director |