At a summer camp near a
Colorado national park, a young boy runs a short race against his fellow campers and collapses with a severe
asthma attack. The boy is taken to the camp's infirmary where nurse Emily Evans tries to help him with a drug administered by injection. The boy, who is terrified of needles, flees into the woods, where Jerry Barker finds him. Park ranger Erickson tries to calm wealthy Robertson Lambert, the missing boy's frantic father. Barker demands a $200,000 ransom and warns Lambert not to tell anyone or he will kill his son. Lambert agrees to pay the ransom, but when the boy tries to escape from his hiding place, he accidentally falls to his death. When Barker returns with the ransom money and sees the dead child, he coldly throws the body over a cliff and buries most of the money. Caught by agent Madden of the FBI, Barker is convicted of extortion but not murder because the body is not found. He is sent to prison, where the warden hopes to intimidate Barker by exposing him to four hardened convicts: bank robber Rollo Lamar, smuggler Alamo Smith and cold-blooded killers Mason and Kelly. Barker becomes known as the "ice man" because of his cold persona in the courtroom during his conviction. He gains the inmates' trust after discovering their escape plan and not informing the authorities. They include him in the breakout, hoping to capture some of the hidden ransom money. Madden is in hot pursuit and discovers that Emily has been a party to Barker's scheme from the start. Back in the park, the fugitives turn on each other until only two are left. Mason is gunned down and Lamar begs for his life. The money is recovered, Barker and Lamar return to prison to face the gas chamber, and Emily receives a long prison sentence. ==Cast==