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.

A sheltered Amish child is the sole witness of a brutal murder in a restroom at a Philadelphia train station, and he must be protected. The assignment falls to a taciturn detective who goes undercover in a Pennsylvania Dutch community. On the farm, he slowly assimilates despite his urban grit, and forges a romantic bond with the child's beautiful mother.

An artist fails a test and is required to direct traffic in New York City's Holland Tunnel. He winds up falling in love with a beautiful woman, who takes him to the moon on a Lunar Cruiser.

A graduate student and obsessive runner in New York is drawn into a mysterious plot involving his brother, a member of the secretive Division.