Robert McCall (Denzel Washington) plays the Equalizer from the classic TV series. He was meant to lead a quiet new life till he meets Teri (Chloë Grace Moretz) in his everyday diner. Her employers are an ultra-violent Russian gangsters which torture her when she refuses to work. McCall took matters to his own hands and eventually everything became interesting for the Russian gangsters.
There are some really really questionable scene if you watch this movie, the most will be the explosion. Other than that, it seems like there are also part which is literally not needed, it can be edited out for example McCall standing at the beach with the background song playing for 5 mins just doing nothing, u WOT? Most of the bad guys while they look tough and scary, they are merely just dumb puppets and the final scene could be better with more hand-to-hand action.
TL;DR: If you need something to be equalize, call Denzel Washington.