A federal marshal stationed at a mining colony on the Jupiter moon of Io uncovers a drug-smuggling conspiracy. He gets no help from the workers or authorities when he finds himself marked for murder.
Director
Peter Hyams
Writer
Peter Hyams
Cast
Sean Connery as Marshal William T. O'Niel
Peter Boyle as Mark Sheppard
Frances Sternhagen as Dr. Marian Lazarus
James B. Sikking as Sergeant Montone
Kika Markham as Carol O'Niel
Nicholas Barnes as Paul O'Niel
Clarke Peters as Sergeant Ballard
Steven Berkoff as Sagan
John Ratzenberger as Tarlow
Bill Bailey as Hill
James Berwick as Rudd
Norman Chancer as Officer Slater
Stuart Milligan as Officer Walters
Hal Galili as Officer Nelson
Anni Domingo as Officer Morton
Manning Redwood as Officer Lowell
Angus MacInnes as Hughes
Eugene Lipinski as Cane
Pat Starr as Flo Spector
Sharon Duce as Prostitute Attacked By Sagan
Marc Boyle as Nicholas Spota
Richard Hammatt as Russel Yario
P. H. Moriarty as Hitman
Angelique Rockas as Maintenance Woman
Doug Robinson as Hitman
