go back another night to look again, but while Tom and Sally are searching, Bob and Shirley are kidnapped by Hauron and Nadja. Bob dies during his capture, so Nadja removes his arm and grafts it onto Hauron. She says Bob had a handsome chin and replaces Hauron's scarred chin with it. Shirley and Bob are both transmitted to the aliens' planet, even though Bob is dead and the aliens have been admonished about sending dead or otherwise damaged specimens. Not knowing that Shirley and Bob have already been transmitted, Tom and Sally find the cave and are captured. They're kept intact, although held in place by an electronic device. Tom frees himself after discovering he can disable the device by waving his wristwatch's radium dial at it. He goes for help, but leaves Sally behind, forcing him to return because she is still a captive. Help arrives in the form of sheriff's deputies, Army personnel and rocket scientists. They demand that Nadja and Hauron surrender themselves, but they're captured en masse. Hauron and Nadja incapacitate them, then revert to circle form to transmit themselves home. But before they're able to, the captives awaken. Tom, and Sally's father, the head rocket scientist, concoct a method to prevent the extraterrestrials from transmitting themselves. The humans escape from the cave just before a powerful explosion destroys it. They congratulate each other because Sally and Tom have been rescued and now the space program is safe. But just as it appears that all is well, Sally and the chief deputy (Lyle Felisse) get into his patrol car. As they drive out of camera range, the tires screech, there are the sounds of a crash and Sally screams. The two white circles on a black background reappear, exactly as at the start of the film. Are the aliens still here? Cast The credits at the end of the film list the cast in the following order of appearance: Jason Johnson as Hauron Katherine Victor as Nadja Harriet Dichter as Woman Scientist Chuck Howard as Maj. Gen. Hollister Bill Vess as Capt. Martin Joe Chester as Dr. Meister Gary Travis as Bob Hardin Billy Greene as Dr. Heinrich von Hofften Scott Peters as Tom Wright Linda Connell as Sally Markham Tom Allen as Cpl. Williams Tony Soler as Newsboy Thelaine Williams as Shirley Brian F. Wood as Elmer Wesson Flori Jo Johnson as Police Dispatcher