After a blackout at Space City, a missile gets through the radar blackout, and is heading towards Space City with a dangerous cargo...
| Name | Type | Role | |
|---|---|---|---|
| Anthony Marriott | Writer | ||
| Sylvia Anderson | Guest Star | ||
| Paul Maxwell | Guest Star | ||
| David Graham | Guest Star | ||
| John Bluthal | Guest Star | ||
| John Kelly | Director |