The car pool sharers Don, Mel and Steve assault Mel's boss on a trip to San Diego. But during the robbery the man is killed. Barnaby traces Mel who gets nervous and wants to leave to Mexico with his wife Lorna. When Mel is accidentally killed she joins Don.
| Name | Type | Role | |
|---|---|---|---|
| Joel Murcott | Writer | ||
| Janice Lynde | Guest Star | ||
| Jo Ann Harris | Guest Star | ||
| Burt Douglas | Guest Star | ||
| Dick Van Patten | Guest Star | ||
| Richard Derr | Guest Star | ||
| Aubri Martin | Guest Star | ||
| Robert Hogan | Guest Star | ||
| Peter Hobbs | Guest Star | ||
| Cathleen Cordell | Guest Star | ||
| June Dayton | Guest Star | ||
| Christopher Stone | Guest Star | ||
| Walter Grauman | Director |