An honest marshal in a corrupt mining colony on Io, Jupiter's sunless third moon, is determined to confront a violent drug ring even though it may cost him his life. After his wife angrily deserts him, he waits alone for the arrival of killers hired by the company to eliminate him.
as Marshal William T. O'Niel
as Mark Sheppard
as Dr. Lazarus
as Sgt. Montone
as Carol O'Niel
as Sgt. Ballard
as Sagan
as Tarlow
as Paul O'Niel
as Lowell
as Nicholas Spota
as Flo Spector
as Officer Nelson
as Hughes
as Walters
as Cane
as Officer Slater
as Russel Yario
as Nurse
as Worker at Table
as Hooker
as Officer Fanning
as Officer Hill
as Maintenance Worker
as Hitman #1
as Worker #1
as Caldwell
as Female Prostitute - Leisure Club Sequence (as Judith Alderson)
as Barman (uncredited)