Rocks from a meteor which grow when in contact with water threaten a sleepy Southwestern desert community.
| Actor | Role |
|---|---|
 Grant WilliamsDave Miller | Dave Miller |
 Lola AlbrightCathy Barrett | Cathy Barrett |
 Les TremayneMartin Cochrane | Martin Cochrane |
 Trevor BardetteProf. Arthur Flanders | Prof. Arthur Flanders |
| WWilliam FlahertyPolice Chief Dan Corey | Police Chief Dan Corey |
 Harry JacksonDr. Steve Hendricks | Dr. Steve Hendricks |
 Richard H. CuttingDr. E.J. Reynolds | Dr. E.J. Reynolds |
| LLinda ScheleyGinny Simpson | Ginny Simpson |
| DDean CromerHighway Patrolman | Highway Patrolman |
 Steve DarrellJoe Higgins | Joe Higgins |
 Paul PetersenBobby | Bobby |
 William SchallertWeatherman | Weatherman |
 Phil HarveyBen Gilbert | Ben Gilbert |
 Troy DonahueHank Jackson | Hank Jackson |
 Carol MorrisNurse 1 | Nurse 1 |
 Claudia BryarMrs. Simpson | Mrs. Simpson |
 Ezelle PouleEthel | Ethel |