Starship C57D travels to planet Altair 4 in search of the crew of spaceship “Bellerophon,” a scientific expedition that has been missing for 20 years, only to find themselves unwelcome by the expedition’s lone survivor and warned of destruction by an invisible force if they don’t turn back immediately.
Genre: Adventure, Fantasy, Horror, Romance, Science Fiction Actors: Anne Francis, Earl Holliman, Frankie Darro, George D. Wallace, Harry Harvey Jr., Jack Kelly, James Best, James Drury, Jimmy Thompson, Les Tremayne, Leslie Nielsen, Marvin Miller, Morgan Jones, Peter Miller, Richard Anderson, Richard Grant, Robert Dix, Roger McGee, Walter Pidgeon, Warren Stevens, William Boyett Directors: Fred M. Wilcox Production: Metro-Goldwyn-Mayer