A well respected archaeologist is about to murder a mysterious man, supposedly dead for many years. The doctor's fiancée hires the Checkmate team to stop the murder.
| Name | Type | Role | |
|---|---|---|---|
| Leigh Brackett | Writer | ||
| Harold Clements | Writer | ||
| Julie Adams | Guest Star | ||
| Betty Lou Gerson | Guest Star | ||
| Simon Scott | Guest Star | ||
| Vinton Hayworth | Guest Star | ||
| Philip Ahn | Guest Star | ||
| John Hoyt | Guest Star | ||
| Joseph Cotten | Guest Star | ||
| Doris Dowling | Guest Star | ||
| Robert Florey | Director |