Jackie is a divorced mother of two. Isabel is the career minded girlfriend of Jackie’s ex-husband Luke, forced into the role of unwelcome stepmother to their children. But when Jackie discovers she is ill, both women realise they must put aside their differences to find a common ground and celebrate life to the fullest, while they have the chance.

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.