When a man-eating cave creature appears with a fortune in uncut diamonds around his neck, Dr Chambers' daughter Denae hires adventurers C and C Salvage to find the underground source of the gems.
| Actor | Role |
|---|---|
 Ross HagenCort Eastman | Cort Eastman |
 Jeffrey CombsAndrew Paris | Andrew Paris |
 Dawn WildsmithEddy Colchilde | Eddy Colchilde |
 Robert QuarryProf. Strock | Prof. Strock |
 Susan StokeyDenae Chambers | Denae Chambers |
 Sybil DanningAlien Queen | Alien Queen |
 Michelle BauerCave Bunny | Cave Bunny |
 Russ TamblynBill | Bill |
| MMichael SonyePicnic Guy | Picnic Guy |
| VVictoria AlexanderPicnic Girl | Picnic Girl |
 Tony LoreaPedro | Pedro |
| GGary J. LevinsonMutant | Mutant |
| BBob IvyMutant | Mutant |
 William SmithDr. Chambers | Dr. Chambers |
| TTricia BrownCavegirl | Cavegirl |