1970s movie about ex cons and a sadistic probation officer

A football player-turned-convict organizes a team of inmates to play against a team of prison guards. His dilemma is that the warden asks him to throw the game in return for an early release, but he is also concerned about the inmates' lack of self-esteem.

Disgraced pro football quarterback Paul Crewe lands in a Texas federal penitentiary, where manipulative Warden Hazen recruits him to advise the institution's football team of prison guards. Crewe suggests a tune-up game which lands him quarterbacking a crew of inmates in a game against the guards. Aided by incarcerated ex-NFL coach and player Nate Scarborough, Crewe and his team must overcome not only the bloodthirstiness of the opposition, but also the corrupt warden trying to fix the game against them.

An ex-convict trying to straighten his life out takes a job as a parole agent in an experimental project to help former inmates.

An elderly gangster just released from prison plans one last job, and gathers a small crew to do the job, but the plan goes sour when one of the crew betrays the details of the operation to a rival gangster.

Following a long investigation, Police Detective-Lieutenant Anthony "Tony" Roberts becomes convinced that there is some powerful unknown-master-mind leader behind the gangs of crooks who are terrorizing the city, and it has something to do with paroled convicts. He sets up a scheme with his supervisor to have himself shamed by being demoted to a patrolman and then caught in the act of receiving bribe-money from a racketeer. He is convicted and sent to prison, and the manner in which his parole is arranged leads him, dangerously, to the secret-head of the gang.

High school dropout Jimmy McCusick goes to prison for robbery. After suffering a gang-rape and then drawing the attention of a hardened life-term convict, he is put in protective confinement. Upon being paroled he finds himself unable to hold onto either his girlfriend or his job. Parole officer Andy Driscoll must find a way to keep Jimmy from sliding back into crime.

Follows a fair parole officer and his parolee who wants to go straight but his former business associates are after him.

A former convict on parole must outwit the police to get his share of an old heist.

A hapless parole officer is framed for murder by a crooked police chief. To prove his innocence he must entice his former clients away from the law abiding lives they are now living to recover the evidence that will save him.

A federal agent's life is in danger when he's exposed while investigating a parole scheme.