McCall and Mel help a deported woman track down her son after she was separated from him while seeking asylum at the U.S. border. Also, Mel, McCall and Bishop exhaust every avenue to get Harry released from prison.
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.