Retro Old Time Radio

In a rustic mountain cabin hideaway, a young woman finds her lover cowering in a room. What is the trouble? Her insistence forces him to calm down enough to the tell the story behind his vanishing, and current condition.   Flashback to a scene where the assistant agrees to accompany the professer, and an indian guide on an exploration of the Grand Canyon, and some unexplored caverns there.   The professor tells about a little known custom of the plains indians locking people in caves as a trial of manhood. A strange rock formation seems to offer the chance to investigate that legend. It means blasting away a landslide, and checking it out. The findings prove something else though.   A wagon train has been found that is estimated to be at least a hundred years old. Maybe there's nothing to the legend, or maybe something else that is unexpected begins to develop. Here's some hints. Get ready for savage killings, horrors in the bowels of the earth, and a narrow escape.   But remember that openi