Robert McCall is a former agent of a secret government agency who is now running his own private crime fighting operation where he fashions himself as "The Equalizer." It is a service for victims of the system who have exhausted all possible means of seeking justice and have nowhere to go. McCall promises to even out the odds for them.

The new warden of a small prison farm in Arkansas tries to clean it up of corruption after initially posing as an inmate.

Earl Eischied is a man with his hands full. As the Chief of Detectives in New York City he is trying to break up a group of black militants that are on a crime spree including the killing of a police officer. He is also trying to battle with a mayor and police commissioner that want him out of his job.

A young man who is charged with child molestation is placed in New York City’s infamous Tombs prison. When the other inmates in his cell block find out what he is charged with, life becomes extremely difficult for him.

A petty criminal fakes insanity to serve his sentence in a mental ward rather than prison. He soon finds himself as a leader to the other patients—and an enemy to the cruel, domineering nurse who runs the ward.

In New York, armed men hijack a subway car and demand a ransom for the passengers. Even if it's paid, how could they get away?

Frank Serpico is an idealistic New York City cop who refuses to take bribes, unlike the rest of the force. His actions get Frank shunned by the other officers, and often placed in dangerous situations by his partners. When his superiors ignore Frank's accusations of corruption, he decides to go public with the allegations. Although this causes the Knapp Commission to investigate his claims, Frank has also placed a target on himself.

A high-priced call girl is forced to depend on a reluctant private eye when she is stalked by a psychopath.