Corny Hogan turns state's evidence on Slash Scarponi, and the criminal is sentenced to Bedlam Island prison for twenty years. However, Slash is still able to control his mob on the outside because he has a phony warden in charge of the prison. When Happy Terrill begins putting the heat on Scarponi, the mobster decides it's time to break out of prison and get Terrill.; Midnight investigates graft and corruption at an orphanage.; Kent and Chuck crash land in the arctic and came upon a tropical land replete with cavemen and thought-to-be extinct animals. Belthor, leader of the cavemen, said that the land was heated by volcanic steam and his people enslaved by men drilling for oil.; When Tom's passenger plane is hijacked en route to Alaska, he defends the home front by uncovering an invasion plot.