| Screenplay by | Anthony Terpiloff |
| Directed by | Charles Crichton |
| Guest Artist | Roy Dotrice |
| Special Guest Star | Christopher Lee |
| Denmark | Retur til Jorden? | Return to Earth? |
| France/Canada | Direction Terre | Direction: Earth |
| Germany | Captain Zantor | Captain Zantor |
| Italy | Destinazione obbligata: Terra | Obligatory Destination: Earth |
| Japan | No Return to the Earth! | |
| Netherlands | Aan de aarde gebonden | Bound to the Earth |
| Portugal | Rumo à Terra | Course To Earth |
| South Africa | Bestemming, Die Arde | Destination Earth |
| Spain | Rumbo a la Tierra | En route to Earth |
| Sweden | I Riktning mot Jorden | At course for Earth |
Representatives from a dying planet land on the moon. Their spacecraft has been programmed to take them to Earth. Is this an opportunity for key Moonbase personnel to return to Earth? Commander Koenig is faced with unexpected drama.
I had a little problem with Christopher Lee on Earthbound. In the first series, l had more of a total control over the make-up, the hair, the costume, particularly with our aliens. I would always design the alien, in whatever form, even if it was Christopher Lee. I designed his out of it, and of course, when creating an alien like this, you're designing the makeup as well, so I would work with the make-up and hair departments. We built his nose up, I wanted it absolutely straight, but he didn't want this, he was not happy about having this on his face. And after the first day's shooting, they removed the make-up, and it took the skin off his nose!
Int. Main Mission
Int. Command Office
Int. Nuclear Power Station (revamp Command Office)
Int. Medical
Int. Alpha Corridor
Int. Travel Tube
Int. Eagle Pilot Section
Int. Eagle Passenger Section & Vacuum Chamber
Int. Kaldorian ship
Main Mission is in the new layout with no steps to the viewports and more widely spaced desks (the early layout is in Breakaway to Ring Around The Moon). Kano's desk will not appear until Missing Link.
The Main Power Unit set (a revamp of the Command Office) previously appeared in Black Sun.
There is no new music for this episode.
1 left Alpha: Simmonds (presumably deceased).
Eagle 1 (Alan, Rescue); 2 (Rescue). The first appearance of the red striped pods. There is a rare view of the docking tube, which uniquely has a corrugated seal. A winch pod is seen in the Eagle hangar.
Planets:None. We learn about the dying planet Kaldor.Aliens:Kaldorians |
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As Zantor lies down in the casket at the end of the episode, his wig falls off revealing dark hair beneath.
When Simmonds is battering his casket, at the end of the shot we briefly see beyond two aliens- one turns his head round, the other sits up. The director had probably called "cut" but the editor decided to use slightly more of the shot.
As the first episode featuring an alien spaceship, the Kaldorian ship was widely used in merchandising. Christopher Lee's Zantor was also popular.
Contents copyright Martin Willey