
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 as 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.
After an operative kills all but one of the employees at a marine biology research group, McCall and the team join forces with Colton Fisk when they discover a connection between the murders and a secret CIA program he was involved in.
When a Venezuelan migrant is accused of murdering a prominent congresswoman, McCall and the team work to uncover whether he was involved; Aunt Vi tries to look after a student who seems to be experiencing distress at home.
Aunt Vi enlists the help of McCall and the team when she realizes her masseuse is a victim of domestic abuse; McCall trains Dee on situational awareness; Dante goes against orders by chasing after the man who shot his friend.
When Fisk tasks McCall with tracking down an ex-MI6 agent in Paris, she must convince him to help her track down a crucial document that his friend was hiding; Delilah faces discrimination at her new fashion internship.