After intercepting a missile on course for earth, Steve Zodiac and the crew of the XL5 travel to Planet 46 and discover the Subterrains who launch another missile at the earth with Venus trapped inside.
Name | Type | Role | |
---|---|---|---|
Gerry Anderson | Writer | ||
Sylvia Anderson | Writer | ||
John Bluthal | Guest Star | ||
David Graham | Guest Star | ||
Gerry Anderson | Director |