g-moff I agree that the special effects in this movie are really sub-standard compared to what was possible in 1977 (it was a low-budget movie), but the story itself is interesting and pretty clear and there is never a doubt that the 5 (and not "about 4" - did you really watch this movie???) survivors make it back to earth and are stranded in Mexico (more precise: at the deserted Baja California coast). The water is a problem for these survivors because they carry a small portable filter with which they can produce drinkable water from salt water (that's why they stay at the coast at the beginning) but not enough for all of them. What makes this movie interesting imho is the fact that they managed to survive the tough two years return voyage only by strict self-discipline whilst being in the small space capsule, but as soon after they have reached the earth orbit, all the suppressed group dynamics and character differences are starting to show and lead to the group's breakup. Don, the scientist, who is the physically and mentally weakest of those who survived, is, on the other hand, the most flexible of all and he is the only one who can adapt to their new situation.

Michael A. Martinez I always looked at this as a sort of Vietnam parable. The astronauts (before they return to Earth) have nothing but high hopes and delusions of grandeur. They dream of a warm reception and massive parades for the conquering heroes. However, nothing is further from the truth, as the Astronauts return to a world where they are not only forgotten, but unwelcome. The bleak atmosphere of this movie is truly astonishing. I love the scenes where the astronauts wander around in the desert while the main character Don has frequent flashbacks to spacecamp and an extended sequence on the surface of Ganymede where two of his fellow explorers die tragic deaths. While the cinematography and editing are pretty crude, there are some pretty good ideas and tricks used by this extremely low budget movie. Although the acting does get over the top at times, it's never too silly to keep from enjoying the seriousness of the movie, which in the end is more of a thinker than a downer. I love the ending in that it raises some really good questions while the movie could have ended at any point earlier on.Watch as a curiosity item, at least to see Jurgen Prochnow in a very pre-Das Boot supporting role.

uvaldi This had the potential to be a great movie. I think the English dub was bad and the direction could have been better, but if you are sci-fi freak and like post-apocalypse type themes watch this movie. Operation Ganymed at times creates a chilling mood and that is what makes sci-fi a great escape from the reality a living on this miserable rock called Earth. (The planet is fine is just happens to be infested by scum called humans.)

Zar I've read about the atrocious English language dub, but my copy of the film is the Dutch rental video with the original German dialogue and it sounds fine. The film itself is gritty and realistic in tone. Five astronauts return from years in space only to find a seemingly desolate Earth. No radio signals, deserted ruins, sparse vegetation etc. At loss at what to do next they decide to head North, but without sufficient food and water supplies, how long will they last? The line between reality, hallucinations due to dehydration (and possible radioactive sickness) and flashbacks to their exploration of Jupiter moon Ganymedes is constantly blurred. Recommended.