While three elderly businessmen are having a Christmas Eve dinner, they are visited by two kind-hearted strangers who return their wallets. The men are all killed in a blizzard, but return to Earth as the couple's guardian angels.

Robyn McCall is reeling from the fallout of Delilah's discovery that her mother is The Equalizer. While McCall struggles to reconnect with Delilah, she is dismayed to learn that her vigilante profile is growing exponentially online. Just as McCall considers ending her work as The Equalizer due to the social chatter and the district attorney's commitment to bringing her to justice, she takes on an unexpected client: Detective Marcus Dante. Dante approaches...

Robyn McCall, an enigmatic woman with a mysterious background, uses her extensive skills to help those with nowhere else to turn. McCall comes across to most like an average single mom who is quietly raising her teenage daughter. But to a trusted few, she is 'The Equalizer,' an anonymous guardian angel and defender of the downtrodden, who's also dogged in her pursuit of personal redemption.