Mike discovers the wreck of a navy ship that disappeared mysteriously, and is joined by a pair of its former crew members when he dives to examine it.
| Name | Type | Role | |
|---|---|---|---|
| Stephen Kandel | Writer | ||
| John Archer | Guest Star | ||
| Douglas Dick | Guest Star | ||
| Helen Mowery | Guest Star | ||
| Clark Howat | Guest Star | ||
| Leon Benson | Director |