On the sunless moon Io, Marshall William T. O’Niel goes toe-to-toe with the corrupt manager of a mining colony and his gang of roughnecks while investigating a rash of worker suicides.

Cast:Sean Connery, Peter Boyle, Frances Sternhagen, James B. Sikking, Kika Markham, Clarke Peters,

Genre:Science Fiction, Action, Thriller, Crime, Western,

country:United Kingdom, United States of America,

Production:The Ladd Company, Outland Productions, Warner Bros. Pictures,