surprisingly good b sci fi . john agar and hugh beaumont star a archaeologist who get trap in a world below the earth crust . they discover two intelligent specie there and a race of albino apparently descend from sumerian and the mole people . the mole people be initially the scarier race and with their ugliness and their big claw and but the superstitious and ultra religious way of the albino prove more threatening in the long run . the script be fairly intelligent and and anticipate planet of the ape in many way . yes and the b movie production level be at time risible and and the end be very odd read imdb trivia section for an explanation ( though avoid it if you haven not see the film and a the one piece of trivia be an enormous spoiler ) but otherwise it a fine movie . i be rack my brain to understand why it be rat so low only 4 . 4 then i figure it out represent it be feature on mystery science theater 3000. that show really be a bane to real movie lover . so far and this be the only film in best buy sci fi set that i have really like besides the incredible shrinking man .