When four geologists who form a combine of five industrial companies turn up dead, the race is on to determine whether the culprit is a group of high-powered industrial interests or the government. A trouble-shooter is hired to find a net of deadly intrigue and treachery. The prize: a field to be leased to private industry by the state.
| Actor | Role |
|---|---|
 John EricsonBlake Heller | Blake Heller |
 Lola AlbrightPeggy Lido | Peggy Lido |
 Leslie ParrishTreva Saint | Treva Saint |
 Nehemiah PersoffLt. Dow Reeves | Lt. Dow Reeves |
 Charles DrakeHarvey Sheppard | Harvey Sheppard |
 Kent SmithPaul Kimmel | Paul Kimmel |
 Don RicklesHarry Darkwater | Harry Darkwater |
 Michael ForestHaines Conjar | Haines Conjar |
 Mark RobertsJoe Diguseppe | Joe Diguseppe |
 Edy WilliamsSabra McKinley | Sabra McKinley |
 Marilyn DevinGeorge | George |
 Leslie McRaySultry Voice & Legs | Sultry Voice & Legs |
| DDodie WarrenNurse | Nurse |
 Dub TaylorPete Jensen | Pete Jensen |
| RR. L. ArmstrongErnie James | Ernie James |
 John CliffTongs Fowler | Tongs Fowler |
| BByrd HollandChet Manning | Chet Manning |
| RRichard NorrisLou Sayre | Lou Sayre |
 Ed ParkerCassidy | Cassidy |
| GGeorge DeNormandJim Houston | Jim Houston |